Pregnancy Stages Videos
At the beginning of the 3rd trimester, your baby will be very active and don't you know it? During the 3rd trimester, your baby will grow from 33 centimeters to about 50 and their weight increases to round about 7 pounds.
Labor will also vary from pregnancy to pregnancy in the same woman. During labor, the opening of the uterus opens (dilates) as a result of rhythmic tightening and relaxation of the uterine muscles.
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