I have been off my BC for a bout a month and a half and my period started back regular. the week after my period went off i had sex with my boyfriend and two more times that week and he ejaculated. its time for my period and it is late. i have been having headaches, stomach cramping, dizziness/queasiness, extremly tired and alot of gas which is all abnormal for me. I wonder if i can be pregnant. and with all my moms pregnancies she didnt know she was pregnant until she was 5 months.