Letrozole question!

I’ve been dealing with fertility issues for many years. This is the first time I’ve been on letrozole. I found out two months ago that I am ovulating on 5mg. Last month, my period was on time, but I spotted for four days prior to having full flow. This month, my period was due 7/1. I had one instance of spotting red blood on 7/3 and have seen nothing since. Since 7/1 I’ve had off and on cramping but very mild. I have a “phobia” of pregnancy tests due to so many negatives in the past, otherwise I would just take a test. My question is, if I am on a dose of letrozole that is inducing ovulation, my period should be regular right? My cycles are typically 30 days and I’m currently on day 35. I received my positive ovulation on 6/16.