Late LH SURGE

Hi, Is there anyone here got LH surge on CD35 or later than CD35? Due pcos I’m very irregular and i can’t ovulate on my own either.. In my 1 year ttc I never had LH SURGE before, unless If i will take medication (letrozole). But last month didn’t take medication We are taking break from doc visit. I don’t want my hopes up.. I’m late AF due 3days ago been taking PT and it’s BFN, So i wonder IS THERE A POSSIBLE I CAN OVULATE LATE? (But I know it’s impossible cause I can’t ovulate on my own..) but If there’s possible I will ovulate Any success to concieve CD35-CD36 OR MAYBE MY LH SURGE INDICATE AF COMING? 😩