Anyone here have expericence with charting annovulatory cycles?

El

I’ve just started TTC and I’m starting charting bbt, cm, cervix position etc. last month I wasn’t trying to conceive but I noticed a spike on my bbt after ovulation. This month I noticed a wee increase around ovulation time (it matched the peak time on my opk) but a couple of days later my temperature got back to pre-ovulation levels. I’m cd23 now, 5dpo (not sure if ovulted), cervix is super high (I can barely reach it) and somewhat soft. Any ideas?