I was on the pill for 13 days before having a one night stand 3 weeks ago (it says to take for 7 days with added contraception before you are protected). My boyfriend and i had been split up for 3 months and only got back together 3 days ago. My period is 2 days late and im really scared i could be pregnant with this guys baby and the thought of having to explain to my boyfriend of 4 and a half years, and father of my daughter, that im pregnant with another mans baby is driving me crazy, i cant stop stressing. (i only started to stress when my period didnt show up on time like it usually does) ive done nothing but cry all day...i cant buy a test for about a week since ive just paid the bills and groceries and havent a cent left until monday.