Advice/opinions needed, please. Have I been missing ovulation?

[MademoiselleFrenglish]

Been TTC for 25 cycles.

I tracked my BBT this cycle and my Premom app has confused me. The app has added a little pop up to tell me that my ovulation day was the 8th Dec, however, the chart and my home screen both say it was 6th Dec, further confirmed by being 7dpo today (I also used OPKs).

How do I know when I actually ovulated? This is my first time properly tracking my BBT so have I been missing my ovulation day this entire time by a couple of days? I always input when we DTD, so have I scuppered ours chances this cycle, or are we probably ok?

If I did actually ovulate on the 8th Dec, then I would be 5dpo today, not 7dpo, so why isn't the app updating it?

Any help would be really great, I'm freaking out a little bit here. I thought I had this all figured out.

From your chart I was say you ovulated the day after you had peak on the ovulation test as you also had a slight rise in temperature. A potential reason why it's predicting later is maybe because you haven't take your temp every day of your cycle? I think the app needs a certain number of readings to work it out x

Thank you! Yes, that's usually what I go by. I definitely temped daily this cycle after messing up last month, I was careful!