hello, i am 21 and i was supposed to start my period the 14th-17th of November, i started cramping really bad the 17th and got a really bad headache, i had to take a shower to relieve the cramping and i had cramping on and off that night the next day i was okay but i cramped on and off the next couple of days, i took a pt the 20th and it came out negative, i started the 21st at first it was heavy and bright red but by that night it had almost stopped the next two days i only bleed when i wiped and it was still bright red and there were blood clots, i did go to the er the 21st bc i had read online that i could have been miscarrying and i'm Rh negative so i would have had to get a shot, but they only did a pt and it also came back negative and i had already been there for 3 hours and didn't want to stay there any longer its been 16 days since i stopped bleeding and today i have milky white discharge, and its normally clear, could i just be ovulating, and any thoughts about why i was so late and had a short weird period? im waiting to see if my next period is normal if not ill set an apt with my doctor, bc my periods are always on time and last 7 days