Hi my name is kim I haven't had my period for 8 months and I wasn't pregnant and I am not on birth control . After me and my boyfriend had unprotected sex I started to bleed. What does this mean?

How old are you? Have you had your lack of periods looked at by a medical professional? Do you know why you aren't getting periods?

Chances are the bleeding your saw was a result of the sex. Were you properly lubricated at the time? If there wasn't you might have chaffed causing some vaginal bleeding. That is very sensitive tissue in your canal. I would suggest maybe a little lube next time.