That's right, older mamas are considered high risk for complications such as gestational diabetes, stunted intrauterine development for their babies, and chromosomal abnormalities. This means they often can't see general practice doctors and are referred to a specialist. This is even more true if their pregnancies after 35 are first pregnancies. The reasons why are still beyond our understanding, but first time pregnancies tend to have more problems than those that follow. Sadly, women over the age of 35 jump up to a 25% risk of miscarriage. Keep in mind, that's only about 5% more than their twenty something counterparts.