C.G.
That was really weird/ bad advice from your OB. "Girl" pushups are easier but don't really do anything for you. Regular push-ups are much harder and tone more areas of your body (abs, lower back, arms, upper back). If you can't do regular pushups yet, start by doing as many of them as you can, then go to your knees and continue doing pushups until you cannot anymore. The next time you do pushups you will find that you can do more and so on. You can also elevate your hands/arms on a bench or something similar while you are doing pushups and that will make it easier. You can lessen the incline as you get stronger and eventually when regular pushups get too easy you can start elevating your feet:) I was in the Army for five years and have done more pushups than I care to think about and my uterus is just fine:)