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You probably just found out that you’re pregnant and now you want to know what your little guy—or girl—is up to! Even though you didn’t know you were pregnant, your baby has been growing since the moment of conception! By now, your baby is an embryo the size of a poppy seed ­-that’s 10,000 times as big as she was at conception! The embryo now has distinct layers that will eventually develop into your baby’s organs and body parts. All around your baby, a support system is coming into place. Your placenta is actively developing now. In fact, placental cells are actually tunneling into the lining of your uterus, creating a way for your blood flow to supply the placenta with the nutrients and oxygen that the placenta will then provide to your growing baby. Three other key parts of your baby’s support system are also now present: the amniotic sac, which will surround and house your baby for the next nine months the amniotic fluid, which is inside the amniotic sac and protects and supports your baby. And the yolk sac that is delivering nutrients to your baby while your placenta - which will eventually produce your baby’s red blood cells - forms. Check back in next week for your baby development video update!