I'm 21, I last had sex on Thursday but I have had sex on more occasions before this. I am experiencing some cramping, and a little blood but not enough to soak a pad or underwear, its after I go to the bathroom and wipe. I'm not suppose to get my period until next week. What does this mean?

It probably means your period is going to be early.

What do you think it means?

It sounds like you're having an off month. It happens to all of us. It's happening to me right now in fact.

Never got my period for 2 months,and am getting brown spots?am I pregnant

Have you had sex? I know it sounds like a foolish question but, believe me, it's been asked when there WAS no sex involved since the last period.