Here are some of the things that make these conditions more likely:
Rubella (German Measles)
But if you weren’t, or you’re not sure, tell your doctor. If you get rubella during pregnancy, it can create problems with your baby’s heart. If you need to get vaccinated for rubella, you should wait at least a month after getting vaccinated before you get pregnant.
Drinking and Smoking
Both can lead to congenital heart defects and other problems with your baby’s development. Avoid them while you’re pregnant.
If you take any prescription drugs, talk to your doctor if you get pregnant. Some medicines can make heart and other birth defects more likely. Among them are the acne medication isotretinoin and anti-seizure drugs that contain valproate.
Your doctor may be able to switch you to another medicine until your baby is born.
Your baby’s chance of having congenital heart defects rises if either of his parents or any relatives have problems. Talk to your doctor about genetic testing and counseling if it runs in your family.
Genetic testing involves a simple blood test before or during your pregnancy. And it’s important because if you have certain gene glitches, your child’s chances of having it can go up by as much as 50%.
Your doctor will help you understand what your test results mean. That information may give you peace of mind as you think about your future family. Keep in mind that doctors can treat many of these conditions, and these babies grow up to live long, healthy lives.