Blood Incompatability

When Hannah was born, they took a sample of her blood and my blood and they found that while I was pregnant with her, I started producing antibodies to attack her blood. I have type O+ and she has type B+. I guess this is pretty uncommon. They said that if I have another baby, they will have to monitor it more closely while I am pregnant. Hannah had a blood test taken yesterday at her one-week follow-up appointment. If my antibodies continue to attack her blood, she may have to have a blood transfusion... They are going to take another blood test from her in two weeks to compare and see what's going on. I really hope she doesn't have to go through that. If she does, though, at least Brian and his mom can donate blood for her to use, so we won't have to worry so much about hepatitis or anything like that. I hope she will be okay...