OK well me and my ex boyfriend was having unprotected sex for ten moths we were doing the pull out thing. Well I been peeing a lot lately and my stomic hurts and I get a lot of headakes and I haven't got my period yet but I never no when it comes . Plus I am cramping in my vag area .could I be pregnant ?

Since pregnancy is a side effect of intercourse, yes you could be pregnant. There is no form of birth control that is 100% effective and the withdrawal method is the least effective.

If you have the level of maturity to make the decision to have unprotected sex, then you need to continue that level of maturity and go take a pregnancy test. Using the pull out method isn't an "if" you get pregnant, its pretty much a "when you get pregnant".