okay so i missed a birth control pill last week so i doubled up the next day... and because of it i have had breakthrough bleeding for the past week. well i took my pill this thursday and on friday i went to take my pill and realized i lost my pack... well me and my boyfriend had sex on that day, friday, and he came inside of me... (as of friday i am suppose to start my period in three days, monday, but since he came inside of me and ive been having breakthrough bleeding i am unsure about all this) im also unsure because i understand that sperm can live in the female body for a maximum of 5 days... therefore i could have conception within these 5 days. please tell me your honest, experienced input!!