Does my high body weight increase my baby's chances for birth defects?

Possibly: If you have early diabetes because of your weight then this can cause birth defects.

Yes and no: Not birth defects, but certanly some problems. As well as you. You can develop high blood pressure and diabetes related to a pregnancy, and complications to your child with it will increase as well. You baby could be prone for macrosomia, difficult delivery, probably c-section, possible hypoglycemia, and many others in the future.

According to the : Widely-publicized charge study: http://www.Medicalnewstoday.Com/articles/243911.Php., there is a " strong association" of maternal metabolic conditions (obesity, diabetes & hypertension) & ⬆ risk in offspring of autistic spectrum disorders & other neurodevelopmental disorders, not a cause & effect. Congenital anomalies are ⬆ed if maternal diabetes is poorly controlled. Just take care of yourself.