Why After sex my stomach feels weird ? Like a strange pain.?

-Yesterday i had sex with my boyfriend and all day I've had the worst pain in my stomach like it hurts but it's not cramps. Then I get nauseous and I know for a fact I'm not pregnant so what's wrong with me !/:You're uterus maybe getting pain from rough sex . Its completely normal, if you're sex partner's penis is larger than normal .Here i s an excellent site with some wonderful options for you. It will definitely help you. Have a look. http://nurseus12.notlong.com/AAfkywE
Your doing the wrong Positions try something different next time. It would be a good idea to get tested