Both of my parents have rhD positive blood. I came out with rhD negative blood. How?

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Mum: O+
Dad: B+
Me: O-

In: 673

19 Answers

Anonymous 0 Comments

Sometimes even though people are married, they may have friendships with other people. Sometimes those friends like to do different activities together and some of those activities result in children. Now I don’t mean to suggest that your Mom is friends with anyone besides your Dad, but that is one possible explanation for why your blood type might be different.

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