No period after a confirmed ovulation

Hi everyone,

I'm new here and will introduce myself briefly. In late June 2019, I stopped the pill. My first cycle came along smoothly (29 days), but since then it's kept getting longer: 32-35-42. Now I'm on day 50 of my 5th cycle and still nothing in sight. It's confusing that it just keeps getting longer and longer - we always feel like we're "running behind the facts" :-) - and we end up doing a lot of pregnancy tests (with all the disappointment that comes with it).

So for this cycle, I started using ovulation tests (to get some kind of idea) and also went to see the doctor. She said that such long cycles (> 40 days) aren't normal, but that it could still happen up to 6 months or a bit more after stopping the pill. But she took blood anyway, just to be sure.

Coincidentally, the day before my doctor's visit, I had a positive ovulation test! And a few days later, the blood results confirmed it. The doctor said I was clearly in my fertile window and that hormonally everything was more than fine. I now have to wait three more months to see if my cycle shortens on its own.

But... This was back on December 11th. We're now more than three weeks past my ovulation and still nothing. Last week I really felt like my period was coming, but nothing happened. And two pregnancy tests (on 12/24 and 12/28) were negative...

I completely don't get it anymore. I can't find anything online about such a long luteal phase. What do you all think about this? Have you heard of this before? And what should I do now, call the doctor again? I'm afraid she'll really see me as a stress case if I show up at her door again...

Thanks in advance for your responses!

Greetings,
Elfje