CD 21 Peak LH - 1st Round of Clomid

Taylor

I am 26 years old and I have PCOS and irregular periods that have resulted in anovulation. I started my first round of Clomid 50mg on CD3-7 this month. I thought I wasn’t going to ovulate again this month because i couldn’t confirm ovulation with OPKs or BBT, but today on CD 21, my ovulation tests show peak fertility (LH 146!!!) Is it common for Clomid to make you ovulate, but late during your first month on Clomid?