can someone help solve this puzzle

3 days before my fertile window started my boyfriend and I had sex. 6 days later I had very light spotting that lasted all day. now I have had soreness in my abdomin and have been nauseous for 2 days, but my period is still 12 days away. I know I had sex during my fertile window but it's way to soon to check..(.I did anyway) and got a very faint barely there line that showed after only 2 minutes. if my cycle is 30 days, can I ovulate in the early days of ending my period??? I also took 2 test last night and they both were stark white