I had sex with my boyfriend and the next day had bleeding.I just got off my period about 2 weeks ago so it can't be my period.So does anyone know any possibilities there could be that caused bleeding?Could it be a miscarrige due to previous intercourse??

It cannot be a miscarriage as it takes up to 3 days for the sperm to travel up the vaginal canal, through the uterus and into the fallopian tube where it is fertilized. So, if you were bleeding the day after sex there is another reason.

I do want to warn you though, that if you did have unprotected sex 2 weeks after the first day of your period, you are very likely to get pregnant as this is the typical time frame of ovulation.

First off, I agree with J9, it's not a miscarriage.

After you shed your uterine lining during your period, your body starts building it up again. The act of intercourse can cause you to have breakthrough bleeding.

It should be nothing to worry about... but I would pay close attention to what J9 said as far as when you are having sex and ovulation.