Rh Negative Mother is at risk if the father is Rh Positive. Usually Rh Negative Mother gives Birth to Rh +ve Baby. An Rh Negative Mother should be aware of her pregnancy and the blood group of her husband. what is rh factor positive If you are Rh-Positive, your red blood cells do have a marker called Rh factor on them. Rh-negative blood does not have this marker. So when these two separate types of blood mixes there will be immune reaction. The Continue Reading…..