Rh is only an issues when a pregnant women is Rh- and she's carrying an Rh+ child. Positive is best. Negative Rh see positive as an invader and will attack the red blood cells of an Rh+ fetus/infant. OB/gyn's treat this by giving Rhogam shots at 28 weeks of pregnancy and within 72 hrs from birth or after aminos, etc. 1st pregnancies are usually at low risk but following pregnancies require the shot at 28 wks of pregnancy and again after birth due to the high risk of the fetus/infant getting Erythroblastosis Fetalis. If that happens, the fetus/infant will need blood transfusions to stop the destruction of their red blood cells. They give Rh- blood then gradually replace the blood back with the fetus/infants own blood.
The only time blood type is an issue is when the child needs transfusions or donor organs or if theirs a high risk of certain genetic diseases. Most men don't even know their blood type or Rh factor. Most women don't know it until they get pregnant (Ob's usually run blood typing on their patients due to the Rh- issues). Most couples don't go around telling people their blood type/Rh factor or their child's. So unless you foresee your child having organ or blood transfusion or both you and your partner carry a blood related, genetic disease and your child doesn't, you shouldn't have to worry about your child's blood type not matching yours.
|