Okay so... Im 16 days late on AF and for the past week or so ive had slight MID back pain and cramps in my lower belly... At first i thought it was a kidney infection. But today. My back pain and cramps got so bad i had to leave work early. Came home and took a nap and it seemed to have helped. I went pee and looked down and theres a pinkish bit of blood... Not much at all... What is going on... We arent actively ttc but we arent taking precautions.... Normally my period is heavy and full force the first 2 days so this just catches me as weird... Any one else have this...?