It's been over a month since my last period. i've always been really irregular, so i wasn't all that worried at first. but now i have abdominal pain, and it hurts when i have sex with my boyfriend. not like he's too rough with me, it starts hurting as soon as he enters me. i've been really tired lately, my lower back hurts extremely, but it could be due to the cramping and bloated feeling. Could something be wrong? i was reading up on a lot of things that it could be, i was wondering cervical cancer? but i've had the shot....so i'm completely confused. Thanks :-)