Is it possible to find out a baby's blood type before they are born?

If you can't why not?
Answer:
No problem, if you can get a sample of the fetal blood.You'd have to have a pretty good reason for doing it though, because it is risk to puncture the amniotic sac (chorioamnionitis, premature labor).

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of course, you just stick a needle in them through the mother's stomach. maybe you can also tell from the amniotic fluid, but i'm not sure.

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It's safer to wait and test the cord blood after the birth.
If this is to establish or exclude parentage, blood groups are unreliable, due to the large number of possible combinations.
If you get a sample of amniotic fluid, you will be able to get a DNA analysis done.

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Yes, it's possible.My teacher's wife had to have it done. Something about the baby could have a certain blood type that would mix and would cause harm to the mother.I believe the process is called amniocentisis. They will test it if there are certain risks.

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