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Pregnancy due date calculator


The average pregnancy determined at 40 weeks from the last menstrual period. An ultrasound scan  done at any stage of pregnancy after the first six weeks. Pregnancy normally lasts from 37 to 42 weeks. It can be tricky at first to work out how to count your pregnancy in weeks and months. When we measure pregnancy from the start of last period the baby is actually two weeks younger. So, this means when your doctor tells you are four weeks pregnant this means your baby is two weeks younger. A pregnancy days calculator would be a vital tool

A due date is a more accurate time frame for when you can expect to deliver your baby. Only 4% of the babies are born on their due date. Whereas 80% of the babies arrive either two weeks before the due date or two weeks after. Hence the term due month. A due month helps some mother reduce stress and fear of going past their due date. You can gain more idea with pregnancy week by week pictures at this point of time.

Once you confirm that you are pregnant, you want to find out when your baby is due to arrive. A born baby before 37 weeks is premature. Calculating your pregnancy due date is not so easy to make as you think. Most mothers are not aware until they miss their periods. By that time they make up to five weeks. That means they simply take estimate nine months from the day you take the pregnancy test.

Your due date determined by subtracting 3 months from the 1st day of your last menstrual period. Then add 7 days that your due date follow. For example-say, your last period starts on April 11. Count backward 3 months which makes you January. Now, add 7 days. Your pregnancy due date is January 18. This method of due date calculation refers to Naegele’s Rule.

The due date calculator calculates the exact date the baby will be due.  It calculates the important events also such as when the baby will start moving. This is just an estimate, only 4% of babies are born on due date.  

This pregnancy calendar calculator works well for women who have a regular menstrual cycle. But if your menstrual cycle is irregular this method will not work well. There are few additional clues that tell the estimated date of the baby.

The size of the uterus tells the initial internal pregnancy is dated. An early ultrasound estimate more accurately dates of the pregnancy. Yes, a calculator can be wrong. Ultrasounds can also be wrong as can home pregnancy tests. There is no perfect system for estimating an exact date. The date of conception is the day the egg and sperm meet. Due to conception is tricky to determine. After all, sperms can live in women body for up to five days. Ovum can live up to 24 hours of release. In other words, you have a six-day when you can become pregnant.

Another way to handle this tricky business of calculating your pregnancy calendar is to add two weeks to the end of your last menstrual period.