Wanting to know of other mums personal experiences with gestational diabetes in pregnancy, when you test positive. I’ve done 2 tests with fasting 2 hr every pregnancy this is my 4th pregnancy and they want to test me twice again. I have tested negative everytine apart from larger babies nothing else is wrong during pregnancy. I have very large placentas and thick umbilical cords. #1 4kg to #2 was almost 5kg and #3 early at 4.5kg #2 & 3 csection and #4 will be c-section.