Ovulation and app issues. Please help!

Hi everyone, I was curious if anyone else experienced this app not coinciding with my fertile days but on point with my period. Normal periods no issues. I’m due to get my period tomorrow but after the gynecologist appointment Friday. She checked me and was like I think you are ovulation is starting. I’m like but the app says otherwise. So this is my first response fertility test I just took. On Friday it was light and is getting darker so I am so confused!! Anyone feedback would be extremely appreciated!! Have a blessed day everyone!!!♥️🙏🤦🏻‍♀️🤞