Figuring your due date

1. Gestational age – menstrual age
2. Ovulatory age – fertilization age
3. Trimester
4. Lunar months

The beginning of your last periods the point from which the pregnancy is dated. The due date is important because helps your doctor determine when some test should be made. Also estimate baby growth and development. Pregnancy lasts about 280 days or 40 weeks, from the beginning of the last period. Have many ways of counting the due date and it depend what work fro you. For example you can count 280 from the first day of your period or count back three months from the first day of your period and add seven days this will give you an approximate date of delivery. Calculating pregnancy these ways gives you the menstrual cycle or more common gestational age. Most of the doctors keep track of the pregnancy by this method (gestational age).There is ovulatory age called also fertilization age, which is two weeks shorter and dated from the actual date of conceiving.

I believe it would be easy if we don’t get stuck with dates but we have a due week – a seven day period in which the delivery may occur. Very few women deliver on their due day (only 5 %) so the rest of us may feel more quiet if we have a whole week margin for the delivery.
For me was easier way to count was by weeks. Some woman count pregnancy by trimesters. This divides pregnancy into three periods, each about 13 weeks.
You may even hear about lunar months. A pregnancy lasts an average of 10 lunar months ( 28 days each).

Don’t forget that babies have their own plans. Think of your due date as a goal – a time to look forward to and to prepare. You are experience one of the great miracles in life so enjoy it.