I am 11 days past ovulation and i had a sharp pain in the middle of my stomach where my uterus is period is n 3 days is tha a sign of af comming?

??: Don't know what af stands for? Pain is so non specific that no clear conclusions can be derived from it. There is a great deal of bowel dysfunction due to Progesterone late in the cycle that often produces sharp pain. People with endometriosis and adenomyosis (endo in the uterine muscle) commonly experience cramping like a cycle in the week prior to menses.