Opk results made my period date jump back

Haley

So I did opks for the first time this month (month 4 of ttc) and I am VERY regularly on a 28/29 day cycle. In my opks, I learned that my peak is actually like 4-5 days later than what the app was predicting and when I logged my peak, it made my expected period date jump back a few days making my cycle prediction like 35 days. Do I test on like day 30 regardless if I don’t get my period or wait