Late ovulation with femara

I’m really just new to this.

I took femara 2.5 for the first time this month and Im a little worried with my ovulation since it still hasn’t occurred. My cycles are 26-27 days long and I usually notice lh surge around day 12 or 13.

Had an ultrasound day 13 and follicle was 18-20mm. This month since taking femara I got dark line on opk day 15. Went for an ultrasound day 17 and it’s still there around 20-22mm.

What’s going on really? Am I ovulating late this cycle? Should I continue baby dance?

I can’t get hcg shot as my country is out of stock since a month !

What are my chances for the next cycle? I’m going crazy thinking about it 😭