So I need some help here!

My period is 8 days late. I've taken three HPTs and all are negative. We are not TTC.

We use POM quite religiously. My last cycles have been:
33 days
34 days
35 days
35 days
39 days
32 days
...this cycle is currently at day 44.

All the above cycles are since coming off BCP. Any idea what could be happening? They were averaging about 35 days, and now this is totally weird.

I don't temp or anything, but I had some (what I thought was) EWCM around day 20-22, and then AGAIN around day 35 when I was supposed to start my period.

I also had a bit of spotting/blood on day 42.

Thanks for the help.. if you make any sense of this or have a similar situation, I'd appreciate hearing about it!