I had two miscarriages with my ex prior to my pregnancy with my eldest. I spent a lot of the pregnancy trying to do things I hadn't done in the previous two. I somehow got it into my head that I'd done something "wrong" that caused the miscarriages. Logically, I was aware that one out of every three pregnancies just doesn't work out, but I still felt that there was some component of "luck" or something else I couldn't quite put my finger on...