Rh-Negative & Pregnancy: Understanding the Risks & What to Expect

Question
This may be silly, but I have resently had a miscarrage back in Sept, and was wondering if maybe it was caused by my blood type. See when I found out about haveing the miscarrage at the hosp. I also found out I was ab negtive and also rh negtive. I've heard from some friends that women with this rh negtive blood type, that it may cause problems with pregnancy. I would like to know for the future, incase I wish to try and have another child one day.  Thank you!

Answer
If you have Rh negative blood and the father of the baby has Rh positive blood (he has the Rh factor), your body may produce antibodies that will cross the placenta and cause problems in the growing baby (erythroblastosis fatalis or "blue baby syndrome"). That is why we give a RhoGam injection (Rh immune globulin) at 28 weeks gestation and again after delivery of the baby. The RhoGam prevents you from producing antibodies to Rh factor and protects you for future pregnancies. Your blood type will not cause you to have a miscarriage and your miscarriage was not caused by your blood type. Don't worry. If the father of the baby also has Rh negative, blood there is absolutely no problem. By the way, your blood type is AB neg. That means that the type is AB and you are Rh negative (you do not have the Rh factor. However, whenever you are pregnant (even if you do have a miscarriage) you will need a shot of RhoGam to protect you in the future.