Hello Customer (name blocked for privacy),
Welcome to Just Answer.
Rh incompatibility occurs only if the mom is Rh negative and her baby is Rh positive.
It does not occur if mom is Rh positive and her baby is Rh negative.
In most cases the mom will not be exposed to the baby's blood until she gives birth.
However, large amounts of the baby's blood often leak into the mother during delivery.
If you are Rh negative, the next Rh-positive baby you have could have problems if you have developed antibodies.
HOWEVER, this complication of pregnancy has not occurred often since the discovery of Rh-immune globulin (also called RhoGAM).
RhoGAM can prevent sensitization.
It is given to an Rh-negative woman shortly after every delivery, miscarriage, or abortion.
With its widespread use, Rho(D) Immune Globulin Rh disease of the fetus and newborn has almost disappeared.
It has been estimated that with its use a perinatal mortality of about 10,000 cases per year in the US alone has been largely eliminated.
The idea underlying RhoGAM is if anti-Rh antibody is given soon after delivery, it blocks the sensitization of the mother and prevents Rh disease from occurring in the woman's next Rh-positive child.
RhoGAM is now given routinely to Rh-negative women after pregnancies in which they carried Rh-positive fetuses to prevent the mother's immune system from reacting to the Rh-positive blood of any subsequent fetus.
In short, the RhoGAM that your daughter received will prevent any problems with an Rh incompatibility in the next baby.
Your daughter received the rhogam in the correct time frame ( no longer than 3 days).
Because she was only 3 weeks along there was minimal blood exposure.
It also depends too if the babies father is RH+.
If he is negative too then so would the baby. ( As you and your husband found out with your daughter).
This will not cause infertility problems.
I am RH- too and have 3 children and recieved rhogam with all of them.
Most women have at least 1 miscarriage in the lifetime but many don't even realize it because it happens so early on.
Best wishes to you all and I am sorry for your loss.
If you have more questions please let me know.
~Macy
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