Right ive been having unprotected sex since i was 15, i was going with this guy who already had 2 kids i didnt get caught pregnant other people who ive slept with unprotected too i have still come on my period. I've been with my boyfriend for over 2 years now on off we sleep together unprotected all the time i'm still not pregnant. Could this mean i cant have kids? Every now then i get little pains on one side of my amdomen which i heard means i'm ovulating, if i'm ovulating why arent i pregnant? When ive had sex i lie down for hours i even lift my bottom up hold it up for ages so all the semen goes inside me, ive tryed every position possible still NOTHING. I'm starting to worry. I heard that some womens bodies arent ready for pregnancy, could i be one of them? I'm 17, nearly 18. I realy want a baby but i'm not having any luck at all Someone please help me!!! PLEASEEE!!