Suggestions?! Help

Maria🖤 • 🌈Baby Boy born 10.20.2020💙 💜Baby Girl born 07.12.2022💜

This is my second round of Letrozole 2.5mg CD 5-9 and I have yet to see a peak ovulation test. I'm on CD 18 and I have my 21 day progesterone test on Monday. Has anyone ovulated this late on the meds? Last cycle I got a peak on CD 12 and I also started my period on the day I was supposed to check my progesterone levels. 😒