Your husband is negative blood type and you are positive do have to get some kind of injection pregnant?
It is possible that a pregnant woman with a positive blood type and a husband with a negative blood type may need to receive an injection called RhoGAM (Rh immune globulin). This injection is given to prevent a condition called Rh sensitization, which can occur when a pregnant woman is Rh-positive and her fetus is Rh-negative.
During pregnancy, the mother's blood and the fetus's blood can mix. If the fetus is Rh-negative and the mother is Rh-positive, the mother's immune system may recognize the fetus's Rh-negative blood cells as foreign and produce antibodies against them. These antibodies can cross the placenta and attack the fetus's red blood cells, leading to a condition called hemolytic anemia.
RhoGAM is an injection that contains antibodies against the Rh factor. It is given to Rh-positive pregnant women who are carrying an Rh-negative fetus to prevent the mother's immune system from producing antibodies against the fetus's red blood cells. RhoGAM is usually given at around 28 weeks of pregnancy and again after delivery if the baby is Rh-negative.
If you are pregnant and have a positive blood type, it is important to talk to your doctor about whether you need to receive RhoGAM.