Oh Glow, I'm so disappointed

Bri
Long story short...
We have been ttc for 16 months now. Two rounds of <a href="https://glowing.com/glow-fertility-program">IVF</a> heading into #3. New RE wants me to take estrogen once I ovulate in preparation for <a href="https://glowing.com/glow-fertility-program">IVF</a>. 
Glow told me I ovulated around MONDAY (peak day of about 26% chance of conceiving). on FRIDAY I got a blood test to make sure I ovulated so I could start the meds....I still had yet to ovulate. Glow was wrong. 
I know that I ovulate. I don't have any determined issues with my fertility. We are doing <a href="https://glowing.com/glow-fertility-program">IVF</a> for male fertility issues. But I wonder....all this time have we been focusing on the wrong dates in order to conceive?!?!
Don't depend on glow for this information. Do your research, get tests, write it all on a calendar or whatnot just don't depend on glows predictions!