This is my first pregnancy. i am rh- & positive for antibodies, what does this mean?

Which antibodies?: If you are Rh neg then you will receive a Rhogam injection at 28 weeks and post partum. You will need to find out which antibody you have and what the titers (levels) are. Some antibodies are not significant. Others are. The first step is determining which antibody you have. Then you can find out from your doctor if it is relevant in terms of pregnancy.