During your sixth week of pregnancy, your body and your baby's development are already going through many changes. Perhaps the biggest event of this week is that your baby's heart, which is still forming, will begin to beat at regular intervals for the first time.
Your Baby's Development
According to the National Institute of Health, your baby is developing very rapidly during this stage of your pregnancy. The embryo is about 1/8 inch in length and is vaguely C-shaped. It will continue growing rapidly, doubling in size every week, for the next few weeks.
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Although you're still new to this pregnancy, there are plenty of things happening to your body and your baby during this important time. Since many women haven't spread the news about their pregnancy yet, week six can be a nice time to enjoy privately with your family. You'll have plenty of time to share your joy in the coming weeks.