If you’ve got Rh-negative blood and your baby has Rh-positive blood, there could be problems. We’ve got answers to all your questions about Rh factor and Rh incompatibility.
What’s the best way to treat Rh incompatibility?
If your body’s not making Rh antibodies at 28 weeks, you’ll likely get a shot of Rh immunoglobulin (RhIg, aka RhoGAM), which will prevent you from making the antibodies and prevent harm to your next baby (if you have one). You’ll get another RhIg shot within 72 hours of the birth (if baby is Rh-positive) and any time your and baby’s blood may have mixed (which isn’t too likely).
If you are producing Rh antibodies, then RhIg won’t help. Instead, your OB will test your blood regularly to check the antibody levels. If they get high, you might need more tests to check on baby’s health. If baby’s at risk for problems, he might need to be delivered early.
What can I do to prevent Rh incompatibility?
Well, we guess, in theory, you and your partner can get blood tests for Rh factor before babymaking -- and then not have a baby together if you’re Rh-negative and he’s Rh-positive. But that doesn’t sound very realistic!
What do other pregnant moms do when they’re Rh-negative?
“I’m RH-negative. I’m only 13 weeks right now, so I know I won’t be getting the shot for a while. But I had a previous miscarriage, and I...was given the shot then too.”
“I’ve had the shot with my two previous children and will have it again.”
“I’m also RH-negative, but my doctor did a blood test to find out if the baby was negative as well. Luckily, she is, so I don’t need the shot.”
Are there any other resources for Rh incompatibility?
University of Maryland Medical Center
Plus, more from The Bump:
Blood Tests During Pregnancy
What Every High-Risk Pregnancy Patient Should Know
What is RhoGAM?
Source: Your Pregnancy and Childbirth: Month to Month by The American College of Obstetricians and Gynecologists
See More: Pregnancy Conditions , Pregnancy Health , Pregnancy Symptoms , Prenatal Tests
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Reminder: Medical info on The Bump is FYI only and doesn't replace a visit to a medical professional.