period? implantation bleeding?

[blindoptimism]

Hi. I'm new to all of this. Recently, I've had cramping, waves of nausea, backpain, headaches, request urination (15 times the other day! I was impressed!), mood swings. And other signs of pregnancy. I had sex 6 times while I was fertile, as well as on my ovulation day and the days after. I've been getting so nauseated that I have to leave work and classes. However, last night, I started bleeding a week before my period is due. I've never been irregular and I've never clotted like I am. Can someone help? I would have conceived anywhere up to one month ago yesterday.

 

[blindoptimism]

*frequent urination, not request urination.