Down in the dumps

My boyfriend and I have been trying for a little over a year now. I've never gotten a positive opk, and my periods had been off for a while, until about November last year. I recently went to a gynecologist for the first time. He said he's not worried in the slightest. He wants me to start writing down the start and end dates of my periods, and track ovulation and see if I get a positive. Well, this is the first month I will be tracking and testing religiously, and AF is 3 days late! But I tested yesterday and BFN 😭🤦

This is just so stressful.