This is probably a dumb question, but can miscarriages be partly genetic? A close friend of mine announced to me yesterday that her and her husband are pregnant. She mentioned that she was nervous to get to the 12 week mark because her mom had 7 miscarriages before 2 successful pregnancies. Apparently she's already seen her doctor twice (she's 7 weeks) because they consider this slightly high risk.

It got me thinking - I had never heard that before. I always thought for the most part, miscarriages are unexplained.