What's going on?

Ren • Married to my best friend and high school sweetheart, mommy to our handsome boys

AF was due yesterday and never showed. I had cramps on and off the last two days like she was starting then nothing today. I just randomly started getting dull pulsing/aching cramps on the right side of my pelvic and went around my hip then it was gone. Watery CM that I keep thinking either I'm bleeding or I peed a little. I took a FRER this AM and there was a white line that appeared and went away to show a BFN.

Help!