Help with my cycle and TTC

Kristina

Hello,

I am always so regular with a longer cycle (about 31-32 days) this month AF came May 14-17 instead of May 21-24. With glow adjusting my fertility window to reflect that. However today is suppose to be my first day of My fertile window and I am suddenly bleeding. It is a medium flow I would say and mind cramping. Looks like AF. Any thoughts or ideas on what could be happening?