Hey Everyone. I Have been on the depo shot 3 months July 18, and i have not had a period in about 3 or 4 months and i am gaining weight and i have a couple of streach marks on my tummy.. I have been having Vaginal bleeding, well spotting off and on for the last 3 or 4 weeks. and stomack pain like cramping. could someone tell me if i could probably be pregnate or if i should wait till the 18th and fing out at the docter?