Period after getting off of BC pill

Monica • Married & Pregnant w/#2

So I ran out of my pills at the end of September. Hubby and I decided we’d just keep me off of it and see what happens. We’d be perfectly happy with a 2nd baby. AF Is due today & I don’t feel like it is coming at all. Took a pregnancy test - negative. Took an opk yesterday - no surge/low.

Any advice? I’m usually pretty regular on & off of the pill. I just really want to get started so I can track my ovulation better.