I am sexually active I have a boyfriend we have been together for nine months and I also have epilepsy so my medicine sometimes makes me miss my period we'll here lately we haven't been using protection and I'm not on birth control and I was supposed to start my period on the 7th but I haven't had it yet and me and my boyfriend have had a lot of sex this month and the past times he thought I was pregnant the rest are always negitive but today I have had to pee like crazy all day and can't even hold it at all is there a small chance I could be???