Hello, my period is now 17 days late a week before my period was supposed to start I had some lower abdominal cramping as if I was going to start and then nothing. I ve had cramps on and off my pregnancy test this morning was negative, I have had some discharge, lower back pain, nausea, extreme tiredness, and my stomach is bloated. When I go to have a bowel movement it hurts on my left side down in my pelvic area. I was at the doctors but they we re no help all I was told is that all my levels in my blood are good and my urine is fine. What could be causing these issues?