I had sex (June 28th) and three days later I got sick. I threw up twice and just felt nauseous all day. Also along with a little pink discharge. I took 2 pregnancy tests yesterday (July 6th) and they both came back not pregnant. During the day I stated what I think is a period. I have cramps and stuff but I could be pregnancy bleeding. Did I test to early? It had only been 8 days since intercourse.