I am 5 days late on my period, I had very light rust color bleeding but more like a discharge amount in the middle of the month. I’ve had stomach cramps, very bad in my uterus mostly. Back pain, tender nipples, back pain and acne. But I have taken pregnancy tests and they all say negative. I’m also never late on mg period but I’ve been having unprotected sex the past month. What could be going on with all these symptoms? A missed period? AND what does this discharge mean?!? Someone answer my questions please...