*A woman is most likely to get pregnant during the days surrounding ovulation. This critical phase in the menstrual cycle holds the prime window for conception. *

If youâ€™re wondering about the ideal window for getting pregnant and how many days it is after your period, youâ€™ve come to the right place. In this article letâ€™s see how the timing of fertility works and introduce you to a tool that can help you identify the days you can get pregnant.

## What is the â€˜How Many Days After My Period Can I Get Pregnant Calculatorâ€™?

The â€˜How many days after my period can I get pregnant calculatorâ€™ is a tool that helps you determine the optimal time when you can get pregnant. It uses your menstrual cycle which is your personal data to accurately determine your ovulation and fertility period; a period youâ€™re most fertile. By using your data, the calculator immediately tells you what works best for you.

Two key pieces of information are needed for results; your last menstrual period (LMP) and your menstrual cycle length. These key details help in providing the estimated days when youâ€™re most likely to be fertile and ovulate, thus, increasing your chances of pregnancy.

The results are presented in dates which comprise five days and from those dates, the calculator determines the preferred three days to have sexual intercourse to get pregnant.

## Formula Used by the How Many Days After My Period Can I Get Pregnant Calculator

The â€˜How Many Days After My Period Can I Get Pregnant Calculatorâ€™ operates on a simple yet effective formula that considers your menstrual cycle length and the general timing of ovulation.

According to Todayâ€™s Parent, the ovulation occurs 14 days before the next menstrual cycle which is marked by the beginning of another period. This means, if you know the length of your menstrual cycle and deduct 14 days from the beginning of the next menstrual cycle, you should know when your ovulation should occur.

While this subtraction might be easy for women with an average menstrual cycle length of 28 days, it might be difficult for women with irregular cycles to figure out the most likely days they can get pregnant after their period.

However, thatâ€™s where the calculator comes in. The â€˜How Many Days After My Period Can I Get Pregnant Calculatorâ€™ does the estimations for you and gives you the approximate dates, freeing you from any form of doubt.

How does the calculator determine the fertile days then?

The fertility period is a few days before your ovulation. So, if you have a 28-day menstrual cycle and your ovulation is on the 14th, your fertile days will be four days from your ovulation day.

**Letâ€™s see the representation of this knowledge in formulas: **

- Ovulation day= Next cycle length â€“ 14 days.
- Fertile window= a Few days earlier + ovulation day.

## How Does the â€˜How Many Days After My Period Can I Get Pregnant Calculatorâ€™ Work?

The calculator works easily using the data you input.

Step 1

Enter the first day of your LMP in the space provided.

Step 2

Select the average length of your menstrual cycle in the appropriate field.

Step 3

The calculator determines when your fertile window opens and closes and presents you with the dates. It also estimates the best day to have sex to get pregnant. And thatâ€™s it!

## Final Thoughts

Keep in mind that the calculator is a helpful tool but likewise make sure to listen to the signs your body gives you. They can help you predict the time you are ovulating.