weird periods

My period hasn't been normal for MONTHS. And lately for like less than a minute in the beginning of sex, we do it without a condom and I make him stop and we put a condom on. Last week, for one day only, I had a TINY TINY TINY bit of pink spotting. And lately I've been bloated and crampy and had a horrible migraine. Am I starting my period soon? I've also seemed to be discharging more, like either clear and stretchy, or like white-ish. Please tell me this is a period. I took a test, and they were negative, but it may have been too early.  But the chances of getting pregnant off precum are so slight, and we barely did anything unprotected.