By Karoline Gore, guest blogger Gestational diabetes—a type of diabetes that’s diagnosed for the first time during pregnancy—affects up to 10% of pregnancies in the United States every year, according to data from the CDC. It’s thought to be caused by hormonal changes during pregnancy that results in insulin resistance. Women with a history of gestational diabetes are usually able to be surrogates. This is discussed during surrogacy screening with our Boston, NYC, and San Fra