When they do all the blood work at your first visit they check to see if you are producing antibodies. If you are they will give you a shot of rhogam, if not it's all good. They also give a shot at 28w (I had it will all three boys) and at 40w if you go over (just as a booster from the 28w one). It is very rare to become sensitized, mom and baby's blood rarely come into contact during pregnancy, it's at birth that they would be more likely to come into contact. After the birth if the baby is rh+ they will give you a shot of rhogam to protect future babies. Plus it's really only a worry if you are neg and dad is pos, if dad is neg as well baby will be neg and there's no need to worry. I've had three successful pregnancies being rh- and given birth to three healthy boys. Try to relax, the fact that it's known that you are rh- is the biggest thing and will ensure that you have proper care for it.
at 2:05 PM on Apr. 4, 2009