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Due Date Calculator

by nurse Mallory

A full term pregnancy lasts 40 weeks (280 days), separated into trimesters, starting from the first day of your last menstrual period.

Physicians actually consider the first two weeks of pregnancy between your last period and conception--so most calculations are done on this basis.

Enter the first date of your last period:


month
day
year
Conception Date
5 weeks - Your baby now has a heart! Make sure you have eliminated alcohol, caffeine and artificial sweeteners from your diet. You should be scheduling monthly visits to your obstetrician for quality prenatal care.
10 weeks - Major organs formed. Your embryo's fingernails are just beginning to grow. Your baby is now about 1 inch long!
12 weeks - You have now completed your first trimester! Your fetus can now suck its thumb and make its first fist! Your hormones are raging and you may become more emotional than normal (like uncontrolled weeping at those Long Distance commercials).
18 weeks - Now your baby is blinking and can move its hands in a grabbing motion! Your baby is also most likely growing scalp hair. The exhaustion you've felt during the beginning of your pregnancy should be gone by now.
23 weeks - Your baby's skin is now red and wrinkled. Its lungs are becoming more developed, too!
27 weeks - End of Second Trimester. Your baby's brain is now quickly growing! If you don't already have a pediatrician, you may want to ask your friends and family for recommendations.
32 weeks - Your baby has most likely assumed birth position and its eyes can react to light. If you are planning a hospital birth, now is the time to schedule a tour of the hospital and pre-register.
38 weeks - Two weeks until your due date. Make sure you are visiting your doctor once a week and that you have purchased a regulation car seat to drive your baby home. If you have older children, arrange for their care while you are giving birth.
40 Weeks - Your Estimated Due Date!

Text by Mallory Moss, R.N., PhD



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