As your tummy grows with pregnancy, you may be wondering how how much of it is your baby. While you may have a few ultrasounds to determine the health and estimated due date of your baby, they can't accurately depict the size of your baby.
Your due date will be calculated from the first day of your last menstrual period. Conception occurs about two weeks from this day, and that's when you're truly considered pregnant. In just 40 short weeks, your baby will grow from the size of a tiny seed to the size of a plump watermelon.
In the first and second trimester of your pregnancy (from conception to 27 weeks), your baby is measured through crown to rump length, meaning from your baby's head to his or her butt. This is because your baby is still too small to determine a head-to-toe length.
Throughout the third trimester, your baby grows in the uterus to the point he must bend his legs and arms to fit into a comfortable position. This is where the term "fetal position" comes from, legs bent to the chest and arms folded in.
So, while your doctor can't determine the exact size of your baby, you can use the slideshow associated with this article to get an idea of how big your baby is, compared to the size of fruits!
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