light bleeding???

ok ladies. so I had my period last month late. it was 10 days late. the day that I started bleeding i was caught off guard and the blood was nothing but clots! not a flow of blood at all. when the clotting finally stopped, I was still bbleeding lightly for an hour then it stopped. I have had stomachaches since that day and now I am bleeding again! 8 days early! but its pink. I don't know what to make of this. my friend thinks I miscarried last month. but my mom thinks that I'm pregnant. now. what do you think? oh and to add extra, me and my boyfriend both threw up over 6 times last month and are both nauseated now. what is this???? anyone go through anything similar?