I have been on the depo shot since I was 18, and never had to worry about having a period. I stopped taking the depo shot last November after I turned 21. Throughout the last year my body hasn't been regulating normally, but I still had protected sex in case there was a chance I could get pregnant. About 4 months ago my body started regulating normally again so I knew the chances of me getting pregnant were much higher now. Well, last week, I had sex with my now ex, right after my period got done, and it was unprotected. It was more than one time we had sex and we never used the pull out method. I'm not sure if I am pregnant or not, but my stomach has been feeling weird since me and my ex had sex. If anyone can give me advice, please let me know.