I need help!

L • 26, due with 🌈👶🏻 August 7th

So my normal bbt is around 97-98. Somewhere around there, usually 97 but on some days 98. Well during this recent ovulation it was up around 99.1 everyday. The day I started my period it dropped down to 98.8 and then the second day of my period it was 98.2. But today it jumped back up to 99.1.

We’ve been TTC for 6 months now and this has never happened. Does this mean I ovulated in the middle of period? Is that even possible?

I’ll add my chart as well. The very first purple point is my last cycle, that point was 97.8. Then it jumped up to the 99.1.