Question: what happens if you don't get your rh negative shot?
Answer: Risks of the RhoGAM shot — and not getting it In fact, 1 Rh negative pregnant woman in 5 will become sensitive to the Rh positive factor if she doesn't receive RhoGAM. That means, that her baby can be born with one or more of the following things: anemia, a lack of healthy red blood cells. heart failure.