You have to ovulate to get pregnant. I think you are in the clear.
Plus the sperm can live 5 days...
U had sex on the day of ur period u saying & took a pill? U can't get pregnant on the first day of ur period. &. It's been 14 days that last day u had sex with him? I can't really understand ur question sorry.
U have to count the first day of ur period to 14 days. Ex: ur period came on the first then count from 1-14 from 11-14 are ur most fertile days so u have a chance to get pregnant if u had sex those days (then again if ur cycle is 28days regular) hope this helps ;)