Beyond lost about O date

Hi everyone. This morning (what I thought was 14 dpo) my FF account changed my O date. To three days ago. I was supposed ti start my period on Sunday or yesterday so was going to test today. My last (and first) pregnancy ended in loss so I really don’t want to test if it’s just waaaay to early to know. What does everybody think? CD 14 or CD 25? I used to ovulate around CD 17-19 before my loss but have been more inconsistent since then.