Safe Days Calculator
Use our safe days calculator to avoid the risk of unwanted pregnancy. It's free and easy to use. Also learn how to count safe days after periods.
Also Use: Ovulation Calculator, will help you determine your “fertility window”.
Also Use: Due Date Calculator, If you want to know when your precious is coming.
An unplanned pregnancy can lead to psychological or financial problems for some. Therefore, it is important to be aware of methods to prevent pregnancy, in simple words we call them “contraceptive methods”. There are lots of contraceptive methods available like barrier methods(condoms), intrauterine devices(Cu-T), oral contraceptive pills, safe day calculator method(calendar method) etc.
In this blog, we’ll focus our attention on the calendar method safe days or safe period chart method. It is important to mention here that among the contraceptive methods, calendar-safe days are not among the best methods to prevent pregnancy.
We’ll look into what are safe days, what are safe period chart, how to use our safe days calculator, and how to count safe days after period. What is a menstrual cycle calculator?
What are safe days?
Before understanding how to use a safe days calculator? It is important to know what are safe days. Safe days are those parts of the months or your menstrual cycle when there are very low chances of getting pregnant if you have sexual intercourse. Having intercourse on a safe day doesn’t ensure that you are 100% safe. The effectiveness of the safe day method is around 88% effective and with perfect use, it is 95% effective.
What are Safe Days or Safe Period Calculator?
After knowing what are safe days? Let's learn about how to use a safe days calculator or a safe period calculator. Safe days calculator has an algorithm which works on the principle that there are only certain fertile days a woman can have and rest days can be safe days.
Ovulation happens on cycle length minus 14 days. To get a rough idea, suppose you have a 28-day menstrual cycle then the 14th day of the cycle is the day of ovulation and around these days you are most likely to get pregnant. To avoid pregnancy, a safe day calculator has set algorithms in which you enter the longest cycle length and shortest cycle length then it gives you results as days in which you can have sexual intercourse and prevent pregnancy.
If you’re wondering how to count safe days after periods manually? Or a safe days calculator for irregular cycle? Or how to maintain a safe day calendar? We’ll be answering these in further sections.
Why is the safe days calculator needed?
Safe Days Calculator is easy to use, here are reasons to use Safe Day Calculator:
Easy to use
No need to use condoms
No need for oral contraceptive pills
High effectiveness
Prevention of unwanted pregnancy
Natural methods of contraception
How to count safe days after periods?
Let's learn the algorithm of a safe period calculator or safe sex days calculator, this method can also be used manually by you to safe Period calculate.
Here are the steps:
Starting by counting length 10-12 of menstrual cycle length: Count the length of your menstrual cycle each month starting from day 1 of bleeding to the next month’s day 1 of bleeding. You have to keep tracking your menstrual cycle length even after 10-12 cycles. We’ll discuss the limitations of the safe period calculator, do read those to avoid confusion.
Determining the length of the shortest cycle: After counting the length of 10-12 cycles, determine the cycle with the shortest length. For example, suppose someone has the shortest cycle of length 28 days. Now subtract 18 days from it i.e., 28-18 =10. Now the 10th day(counted from the 1st day of bleeding) of your cycle is the first fertile day.
Determining the length of the longest cycle: After counting the length of 10-12 cycles, determine the cycle with the longest length. For example, suppose someone has the shortest cycle of length 35 days. Now subtract 11 days from it i.e, 35-11 =24. Now the 24th day(counted from the 1st day of bleeding) of your cycle is the last fertile day.
Avoiding sexual intercourse in fertile window days: The safe period calculator or safe days calculator works on the principle and gives you days on which you can have sexual intercourse by avoiding intercourse on fertile days and if you want to get pregnant try in fertile days.
Keep tracking your menstrual cycle: Keep tracking your menstrual cycle to avoid discrepancy and update your fertile days, if you find a new shortest cycle or longest cycle.
What is a Safe Period Chart And How do you use it to know days after periods?
A more modern approach for a safe days calculator for not getting pregnant is the standard days method or safe period chart method. Here’s how to use it:
This method works best if you have cycles of length 26-32 days.
Start by counting each day of the cycle starting from day 1 of menses(bleeding) to next month's 1st day of menses.
From day 1 of the cycle to day 7, you are considered to be infertile. You can have unprotected sex.
From day 8 to day 19, you are considered fertile, try on these days to become pregnant
From day 20 onwards you can again have unprotected sex.
Start again with day 1 of your next cycle.
Situations in which the safe period calculator does not work
What are the Limitations of a Safe Days calculator? What Are situations in which a safe period calculator does not work? Here are the conditions safe period chart or calculator does not work and its limitations:]
No use in irregular cycles: People with Irregular cycles cannot use it.
No protection from STIs: If you want protection from STIs, it cannot prevent sexually transmitted diseases
If you cannot Abstinence or have a backup: Abstinence from sex or a backup method when not on safe days.
If you find it difficult to track cycles: Needs several months of tracking of cycles, which can be annoying for some.
If you have Abnormal uterine bleeding(pain, or irregular menses): If you have severe pain during menses or irregular cycles then other methods like pills can help regularising cycles and prevent pain during menses.
Does the Safe Period calculator help?
he effectiveness of a safe days calculator can be greater, if you use it correctly considering you have regular cycles, a not-too-short length and not too long. Here are reasons why people consider the safe period chart method helpful:
No need to consume pills.
No need for implantable or injectable methods of contraception
It is Free and inexpensive
Natural method
Effective, if used correctly
Reversible means if you want to get pregnant you can get pregnant, it is not the same case with pills or implants.
Prevents side effects of other methods of contraception like pills, or Intrauterine devices.
Other methods to avoid unwanted pregnancy
After getting through safe days for not getting pregnant, Let’s have a look at other methods of Contraception to avoid pregnancy:
barrier methods like Condoms, cervical caps, spermicides, diaphragm etc.
Abstinence, not having sex prevents unwanted pregnancy.
Oral contraceptive pills or Injectables.
Intrauterine devices like Cu-T(copper T).
Sterilisation surgeries like tubal ligation or vasectomy
Take Home-points
A safe period calculator to avoid pregnancy is an effective method if used correctly.
Safe days are those parts of the months or your menstrual cycle when there are very low chances of getting pregnant if you have sexual intercourse.
Having intercourse on a safe day doesn’t ensure that you are 100% safe. Effectiveness varies between 88-95%.
You have to track your 10-12 cycles, before starting to use the safe period method.
For easy you can use the safe days calendar or standard days method.
You can use the Sprint Medical Safe Days calculator if you’re finding it difficult to do the maths by yourself.
The benefits of using a safe period chart are it is easy to use, prevents side effects of oral pills or injectables, is reversible etc.
The limitation of a safe sex day calculator is that it cannot be used for irregular cycles if you cannot abstain or cannot use a backup method during unsafe days.
Other methods to prevent unwanted pregnancy are abstinence from sex, barrier methods, oral contraceptive pills, Intrauterine devices etc.
References
https://www.sciencedirect.com/science/article/abs/pii/S0010782402002883
https://www.datocms-assets.com/21281/1662539230-contraceptive-technologies_failure-rates-table-2018.pdf
Frequently asked questions
How many days before or after a period is safe?
There are no specific safe “days” during or after your periods, to be called safe sex days or safe pregnancy days, however, there are specific days where your ovulation is at max. You can monitor your menstrual cycle (it can last from 21 days to 35 days) and calculate ovulation days and avoid having sex or strictly protected sex in those days. Usually there is the very slightest chance of ovulation before your period starts, about 3, or 4 days before and after your period’s date are considered as safe days. Right after your periods, in some women, there are chances of ovulation for which you need to monitor your period cycle. An important to be noted here is that there are chances you can get pregnant just after your periods because sperm has the ability to survive up to 7 days inside your vagina, and you could be most fertile in your ovulation days.
How do I know my safe days?
To know about your safe sex days, you have to monitor your menstrual cycle. To get the precise date and duration you need to monitor at least 6 menstrual cycles by simply marking your dates on your regular calendar. This is calculated from your day 1 of periods till your next menstrual period.
Usually as per the calculation women ovulate after 12 to 14 days of your 1st day of period, hence a week before and after your period date is considered as safe days, as there are less chances of fertilisation.
Can you ovulate right after your period?
YES! This is unusual but there are chances of your ovulation after your last day of period. For those women who naturally have very short menstrual cycle ovulate early; important to remember sperm has ability to survive inside your vagina for up to 7 days.
Always use contraceptives while having sex if you are not willing to get pregnant at all.
What happens after your period ends?
Women have follicles holding eggs in their ovaries which are stimulated for growth and fertilization, once your period ends, one egg matures in every month which means an egg is ready to fertilize by a sperm. This process continues till your next period date.
When your periods comes to an end you will reach menopause which usually starts in the late 40s to middle of 50s. Period frequency reduces gradually and after sometimes it ends completely.
In this menopause phase woman suffers from hot flashes, major mood swings, hormonal imbalance.
How long will sperm wait for an egg?
For fertilization to take place, sperm first need to reach the egg, where sperm usually can survive up to 72 hours after ejaculation, this may extend to 5 days to depending on sperm viability.
On which days pregnancy is not possible?
One week before and after your periods usually counts for safe sex days where there are least chances fertilization as per the menstrual cycle chart, this varies with woman’s menstrual cycle which usually lasts for 28 days.
How to calculate the ovulation period and safe period?
This way you can easily calculate your ovulation and safe period.
First monitor your periods for six menstrual cycles, find the shortest cycle in your past menstrual period.
Substract18 from your shortest menstrual cycle total days period.
Now you have a number, count that number from the day 1 of your current menstrual cycle and mark that day. This marked day is first fertile day in your menstrual cycle. This indicates you will start ovulation from this marked day.
Your ovulation period lasts for 3 to 4 days, so except your ovulation days you have rest of the days with least chances of fertilization, therefore the safe days or safe period to have sex. Always use condoms and contraceptive pills to avoid pregnancy because these calculations gives you gross number of safety period.
How do i calculate my safe days in a 28 day cycle?
You can use safety period chart to calculate your safe days in 28 days cycle. Follow the steps given below to calculate your safe sex days.
First monitor your periods for six menstrual cycles, find the shortest cycle in your past menstrual period.
Substract18 from your shortest menstrual cycle total days period.
Now you have a number, count that number from the day 1 of your current menstrual cycle and mark that day. This marked day is first fertile day in your menstrual cycle. This indicates you will start ovulation from this marked day.
Your ovulation period lasts for 3 to 4 days, so except your ovulation days you have rest of the days with least chances of fertilization, therefore the safe days.
Which safe period to avoid pregnancy?
Usually 1 week before and after your period is a safe period to avoid getting pregnancy. Always use contraceptives and condoms irrespective of safe days to be extra cautious.
Is a safe day 100% safe?
No, a safe day is not 100% safe. There is still a risk of pregnancy, although it is lower during certain days of the menstrual cycle.
How many days can one be safe?
The number of safe days vary depending on the individual. It is determined by the length and consistency of their menstrual cycle. The fertile window is thought to be roughly 6-7 days on average.
Does every girl have safe days?
Every girl has days in her menstrual cycle that are regarded "safer" for avoiding pregnancy. The particular safe days, however, can vary based on the individual's cycle.
Can safe days fail?
Yes, safe days can fail as a method of contraception. The effectiveness of tracking safe days for avoiding pregnancy is lower compared to other contraceptive methods, as it relies on predicting ovulation and the timing of intercourse accurately.
Can I get pregnant 9 days after my period?
Getting pregnant 9 days after your period is less likely but not impossible. It depends totally on the length of your menstrual cycle. Sperm can survive inside the female reproductive system for up to 5 days, and if ovulation occurs earlier in the cycle or if your cycle is of shorter duration, there is a possibility of conception.
How do you count fertile days?
Fertile days are usually counted by keeping track of the menstrual cycle. The viable window often lasts 5-6 days before ovulation and includes the actual day of ovulation, making the window 6-7 days long. Methods like basal body temperature monitoring, cervical mucus changes, and ovulation predictor kits can assist in identifying fertile days.
Can I get pregnant 6 days before my period?
It is less likely to get pregnant 6 days before your period because it is closer to the end of the menstrual cycle.
Can I get pregnant 10 days after my period?
Getting pregnant 10 days after your period is less likely, but it is not impossible. The timing of ovulation can vary, especially if the menstrual cycle length is irregular. If ovulation occurs earlier than expected, there is a possibility of conception.
What percent of sperm live 5 days?
On average, sperm can live inside the female reproductive system for up to 5 days. However, the majority of sperm lose their ability to fertilize an egg within 2-3 days.
Can I get pregnant just after my period has finished?
The chances of getting pregnant just after your period has finished are relatively low but not impossible.
Does safe period calculator really help?
Safe period calculators can be accurate if your cycles are regular and you ovulate every month without fail on the exact calculated day. The primary issue with safe period calculators is that they calculate your ovulation date purely based on the information you provide, and the results are only average, and accordingly, the safe period is calculated. As there are many factors that affect your period, safe period calculators aren't 100% accurate. Thus, you shouldn't rely on them completely.
How do you count the safe days after your period?
Determine the length of your menstrual cycle (the time between the first day of your period and the first day of your next period).
Subtract 18 from the total length of your shortest and 11 from your longest menstrual cycles.
The calculated range denotes the possible safe days to avoid pregnancy.
How to calculate a safe period to avoid pregnancy?
Figure out how long your menstrual period is. To get the first fertile day, subtract 18 from the total number of days in your shortest cycle.
To determine the latest fertile day, subtract 11 from the total number of days in your longest cycle.
The days between these two results are regarded as safe.
How does the Safe Days Calculator for Irregular Cycles work?
It can be difficult to determine safe days if your menstrual cycle is irregular. A Safe Days Calculator for Irregular Cycles may use previous data to discover patterns and estimate fertile and non-fertile days.
Why Is It Necessary To Track Your Menstrual Cycle?
Yes, it is an essential step to track your menstrual cycle, if you want to use safe days for not getting pregnant.
How to Calculate the Safe and Unsafe Days?
We have discussed it in detail. In short, you start by counting the length of 10-12 menstrual cycles. Then subtract 18 days from the shortest length, now that day(counted from 1st day of bleeding) of your cycle is the first fertile day. Then subtract 11 days from the longest cycle length. Now that day(counted from 1st day of bleeding) of your cycle is the last fertile day.
Is there a safe days calculator for 21 days?
No, the 21-day cycle is too short to calculate safe days. You can use other methods of contraception like barrier methods, oral contraceptive pills, Intrauterine devices etc.
How do you count safe days on a 21-day cycle?
You need two numbers (longest and shortest cycle length) not one length of cycle. Start by counting the length of 10-12 menstrual cycles. Identify the longest and shortest cycle lengths. Then use the safe days calculator to calculate safe days for a 21-day cycle.
How to calculate a safe period for a 28-day cycle?
You need two numbers (longest and shortest cycle length) not one length of cycle. Start by counting the length of 10-12 menstrual cycles. Identify the longest and shortest cycle lengths. Then use the safe days calculator to calculate safe days for a 28-day cycle.
How do I calculate my safe days in a 28-day cycle?
You need two numbers (longest and shortest cycle length) not one length of cycle. Start by counting the length of 10-12 menstrual cycles. Identify the longest and shortest cycle lengths. Then use the safe days calculator to calculate safe days for a 28-day cycle.
Is there any safe days calculator for 28 days?
Yes, you can very well Sprint Medical safe days calculator for 28 days cycle, but You need two numbers (longest and shortest cycle length) not one length of cycle. Start by counting the length of 10-12 menstrual cycles. Identify the longest and shortest cycle lengths.