Ovulation discharge vs. Pregnancy discharge

Took a morning after pill in early January. Have been stupid with regards to contraception. One doctor told me I had pcos and I thought hey! I'm not that fertile. Then my other doctor said I don't have pcos. Reading the same blood test results. Anyway! So I've had unprotected sex more than once. Feeling muscle cramps in abdomen like I've exercised. And also discharge which either means I'm now ovulating or maybe pregnant. Took test last week after spotting. But it was negative. But that was 12 days after unprotected. Scared. Confused. Guilty. I am not one to have casual sex and I've learned my lesson but don't know if it's too late. Any advise on the discharge subject and the spotting?