Hi. Im in ovulation and I have been since my last period of course. My boyfriend and I had sex 3 days ago ( April 21). We barely used protection and we can't tell If he came inside of me or not. Today Is April 23 and I'm feeling nauseous, back aches , crampings, and I have some moodiness. I also feel tightness down my abdomen. My next cycle isn't due until the beginning of May (usually the first week). Also when I go to the bathroom I have seen this brownish clear type of discharge. I have no idea what's goin on. Can anybody help me to know whats happening to me? Could I be pregnant?