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Pregnancy Calculator Week By Week

Due date calculation with LMP

Have you heard of Pregnancy Calculator? This calculator helps you to estimate the due date so that you can schedule the baby’s development week by week along with the changes take place in your body. This is a detailed guide that aids you on how to calculate the due date on the ground basis of your biological cycle and also the gestational age of your baby.

What is the Pregnancy Calculator?

Usually, the due date will be obtained from the Gynaecologist whom you visit. By using the pregnancy calculator, it’s easy to estimate one’s due date based on their biological cycle. This calculator provides you with an approximate due date and can estimate the pregnancy schedule.

How to Estimate Your Due Date Using Pregnancy Calculator

The due date is the day by then the labor is about to occur. Whenever a female is come to know that she is pregnant, immediately she thinks of her due date. It is an easy way to estimate their due date by knowing a few dates like,

  • Date of conception (Conceiving Date)
  • First date of last menstrual period

The gestation period is more or less the same for everyone and it is about 38 weeks from the day you conceived (conception date) to the day you deliver your baby.

Most of them may know their conception date. Some might haven’t been aware of it. There is a way to determine your due date without knowing the date of conception. This is the common method which is used by your healthcare professionals by just knowing the first day of your last period. Now let’s get a piece of knowledge on, “How to find out the date of conception?”

How to Determine the Date of Conception and the Due Date

The date of ovulation is taken into account here, as the ovulation date is considered as the date of conception. Only after 12 to 24 hours of ovulation a female can get conceived as the egg has the capability to fertilize after this time period.

Having coitus (sexual intercourse) on the day of ovulation is most likely to get pregnant. Sperm has the capacity to be viable for about five days in the female reproductive system. Having coitus five days prior to ovulation also have a chance to be conceived on the date of ovulation.

By knowing this conception date, it’s easy to calculate your due date and it is approximately about 38 weeks (266 days) from this date. Of course, it is not an accurate one and it might be about two weeks before or after the estimated due date.

Estimating the Due Date using the First Date of Last Menstrual Period (LMP)

If you cannot calculate your conception date, here is a way to estimate your due date from the first day of your last menstrual period.

Determine your due date by just adding 280 days (9 months and 7 days) to the first day of the last menstrual period. This method’s accuracy rate is higher when a particular female’s biological cycle is about 28 days so that the ovulation and conception seem to occur by 14th day of the biological cycle. But if the 28 days of your biological cycle is irregular, the LMP method may not work for you.

There is another easy way to calculate your due date from the date of the last menstrual period. You can subtract three months from the date of the last menstrual period and add seven days to it. This gives you an approximate due date and it is an easy method to calculate. For example, if your first day of last menstrual period is March 19, then subtract 3 months from this date. It is December 19. Now add seven days that means your due date will be on December 26. You can expect your labor day a week before or after.

Know which Trimester You belongs to?

The Trimester is a three month period during your pregnancy. It is divided into three trimesters,

  • The first trimester – week 1 to the end of week 12.
  • The second trimester – week 13 to the end of week 26.
  • The third trimester – week 27 to the end of the pregnancy.

Always the first trimester is considered as the most important and critical period during your pregnancy. Main functions of your fetus start during this period like the heartbeat, organs formation, nervous system etc.,

If you are exposed to any harmful radiations then it leads to any birth defects as the developmental changes take place during the first trimester.

Uses of Calculating the Due Date

  • Helps to know about your approximate due date.
  • You can also know the gestational age of your baby week by week.
  • Aids in knowing the growth and development of the fetus.
  • Makes you know your pregnancy week right now.
  • Guides you to plan your due date according to your convenience and it is based on your biological cycle.

What is the Accuracy of this Due Date Calculator?

This due date calculation gives you a rough idea of the labor day and it accounts about only 4% of babies born on the estimated due date (EDD). You can expect your baby’s arrival a couple of days prior or later to the estimated due date. This paves a way for the mom-to-be prepared for her labor.

Thus you can estimate your due date at home using this pregnancy calculator before you consult with the health care provider for the prenatal visit. This also helps you to know how many weeks you are pregnant right now and it guides you with your baby‘s gestational age and its growth along with the milestones.

Be aware of the labor date! Get your preparation done in a month prior to your date and give your baby a good welcome to this world.

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