Have unprotected sex a day after your cycle ends

Chatea • I`m just trying to find myself again after loosing my first true love of 6long years this year January 30,2015 ..
Ok so me and my boyfriend had sex the day I was going off which was Friday Saturday Afternoon we of course had intimacy and he ejaculated in me I was so upset ..... So my question is do you think I will get pregnant 😨😫😫😖😖😖 I'm so worried and my fertile window starts in 6 days plus I read that sperm lives in the female stomach for 5 days .... I just want to kno if you think I will be safe by the time my next cycle begins