Okay me and my boyfriend have been having unprotected sex for some months i am not on any contraceptives at its been a year and some months since the last time i was on any, they made me have bad reactions so i stopped taking any all together.... well i usually get my period around the third week of every month it sometimes changes on me....but this months its hasn't come and since the last time me and my boyfriend had sex its was about a week and a half and before that we sex then to. but now i feel funny and my breast are so tender and painful to touch the feel as though they have even got swollen i don't know what the problem may be beside i might be pregnant. usually when i get my period my breast are sore but my breast have been very more so tender then usual...any comments are welcome i just don't know what may be the problem....