A Guide To Pregnancy Due Date Calculator

Pregnancy is carrying one or more offspring inside female's uterus. Counting from LMP (Last Menstrual Period), expected date of delivery is around 40 weeks and normally, the pregnancy duration is 38 weeks. Though the pregnancy starts at the conception, it is easier to date it from first day of LMP.

A pregnancy due date calculator is used to determine the due date, or date of conception of the baby. To know the due date, you need to enter the date of your last menstrual period. This will create a calendar, and this will help you trace your pregnancy on daily, weekly or monthly basis.

How Pregnancy Due Date Calculator Works

Pregnancy due date calculator works by adding 280 days to the first day of LMP. It is based on the typical gestation period of 226 days for humans. It is important to be accurate about the monthly cycle, so that the due date is more precise. It is good to maintain your monthly cycles for a few months when trying to conceive. The pregnancy due date calculator is more accurate if the monthly cycles are more regular.

Pregnancy due date calculator offers a day-by-day guide to the body's development and changes from the time of conception till birth. The results offered by pregnancy due date calculator offer a reasonably close estimation. If there is any question regarding the meaning of any terms used, talk to your doctor or health care professional.

It is however important to remember that the estimate given by pregnancy due date calculator is just an approximation based on the information given by you. It is not always possible to determine exact conception date, hence most of the due date calculators are based on the 40 weeks gestation period from woman's first day of LMP. It is assumed that the woman ovulates and conceives exactly two weeks after first day of her LMP, and the baby is carried for 38 weeks. The issue is that this is just an estimate and 40 weeks is average term for pregnancy.

The duration of normal pregnancy can be anywhere from 38 weeks to 42 weeks. There are many sites on the Internet offering pregnancy due date calculator for free. It not only tells due date, but also informs you about the growth and milestones achieved by your baby.

There is also pregnancy weight calculator available online that uses the height and weight, and it calculates the ideal weekly weight gain. This gives a good estimation on how much weight you should gain during entire pregnancy. Some of these sites also give useful information about managing your weight during the pregnancy.