Period but I still think I'm pregnant

I experienced pregnancy signs and had sex for two weeks everyday. I really thought I was pregnant. I spotted Sunday then nothing Monday... Then Tuesday I had a super heavy flow and have had it for two days like a period. However I wasn't supposed to get my period until Friday. Could There be a possibility that I could still be pregnant? I wanna conceive so bad. I am feeling really sick today and threw up but I though t I had just had my period? Please help.