i dont think i have ever had sex before bc i was with a guy one night but i was on my period so im pretty sure we didnt have sex but a 2 days after i started feeling cramping and abdominal pain. i was still on my period then and throught the next week i was feeling tightness in my stomach and my sides were hurting. Now it has been a week and a day and im having abdominal tightness and i feel like my lower abdomen is starting to rise and get tighter..is there any sign im pregnant?