15dpo BFN

Melanie

AF due Wednesday. Tested this morning-BFN. My cycles are very regular, 28 days. BBT dropped today. My husband and I have been casually trying for a few months and when it wasn’t working I started tracking and paying attention. So technically this is our first cycle, so I’m new to this and generally very confused. I had my hopes up when I was late yesterday, but now I’m really sad. Anyone have any advice? Or know why AF would be late but getting BFN.