Its getting kinda ANNOYING that almost everyone has sex and wants to know if they could be pregnant. Oh i had sex and im 4 days late, could i be pregnant or i had sex and my boobs hurt and im 2 days late could i be pregnant? Or the classic i had sex on my fertile day could i be pregnant?   OMG stop asking. If you are pregnant then i guess you will know for sure in 9 months and as soon as your belly grows. Use common sence. If you miss your damn period then take a pregnancy test and shut up. Its not that difficult.