Nicola, sorry to hear about your loss.

It is possible to still ovulate on longer cycles... I'll use my situation as an example.

I used Implanon for 6 years (2 rods, lasting 3 years each) after the second was removed I was diagnosed with PCOS. AF returned 10 weeks after the Implanon was removed and my first cycle was 35 days long. I then started my second cycle.... the days passed and passed I got to cycle day (CD) 35 and kind of expected AF to arrive soon - nothing... I was charting and on CD44 the fertility program I was using informed me it thought I had ovulated on CD37 and was already 7 days post ovulation (DPO). I fell pg that cycle - so it can happen but is not always the case.

I wish you every luck and success in your TTC journey.