my boyfriend and i had unprotected sex last thursday(feb 28 2013) and i took plan B like 20-30 min latter..the next day i just felt some small cramps in my lower belly..they were not that often and not as strong!My head did hurt once or twice but not that bad..i have very bad breath and dry as well but didnt feel nothing the rest of the days but my head hurting a little bit..its been 5 days seens i took plan B, i should be getting my period any time by the end of this week or beginings of next week.. do you think iam pregnant?and can i take a pregnantcy test already? how high are the chances of me been pregnant!?