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What Is a Zygote?About eight weeks after fertilization (roughly week 10 of pregnancy), the embryo ... While experts aren’t sure why a zygote may not progress to the next stage of development, they think it ...
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What to Know About the Fetal Pole and Early Pregnancy UltrasoundIt's typically the first stage of embryonic growth visible ... helps determine how far along you are in your pregnancy. Related: What Is a Zygote? What If a Fetal Pole Has No Heartbeat?
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