So it started off last Wednesday when I noticed subtle cramps when peeing. Those went away after about two days but I began to realize that I was constipated shortly after. It’s now been about a week, I’m no longer constipated but I still have gas and continue to experience mild cramps in my pelvis. My period is due in about 5 days but I never get pre period symptoms. I also have had nipple pain for a week and have had a couple mild headaches in the past few days.