Irregular cycles while on femara

This is my second cycle on 5mg of femara, I’m 13 dpo and on CD 34. Last cycle was 32 days. I had my day 21 done last cycle and they said it was high and that it showed I ovulated. This month we did cycle monitoring and I ovulated around CD 22. Is it ok for cycles to be irregular while on femara? I was super hopeful for this cycle but all my symptoms went away around 11 dpo and now I just have light cramps and lots of creamy cm😩 I guess I’ll be going up to 7.5mg next cycle whenever af comes