A.P.
I agree with Jen that you should get in to see your gyne for a visit, it sounds like a good exam might be the only thing to answer your questions for sure. I too have been told that for health reasons I can't take the pill and should not get pregnant again for my own health so my husband had a vasectomy and did very well--no more taking chances. Also, how old are you because I have noticed that the closer I get to 40, the stranger my periods are getting.