Okay first off I'm 16 I have been with my boyfriend for three years, we have been having unprotected sex we used the pull out method I know not good.. anyways I had sex with him two day before my period of this month which was April 7- April 11 it wasn't to much of abnormal period but was weird cause i didn't' cramp like i usually do it was more of the middle of my lower abdomen I have been having those same cramps every since we have had sex on the last day of my period and after and before this month we have had sex too.. I have been getting heartburn, those cramps, body aches, major fatigue, and headaches everyday, foods seem to make me feel sick, and than sometimes I crave certain things, i feel sick a lot and to top it off my mom wants to take me for birth control this friday... i looked up on a website and by the date of my last period i could possible be about two weeks pregnant if i am.. what should i do? is this nothing? can a doctor tell that soon? Im freaking out a little...