I don’t know what is going on with my Ovulation acco

Tara • Married currently ttc

Okay My Fellow Ladies I’m Taking Geritol and has been since last month I started after my cycles and continued until my new cycle came this morning and current so my thing is I’m on Cycle Day 17 and I’ve been testing the last couple of days because the app says I was supposed to Ovulate on the 11th so I started testing and getting Negatives so the app keep pushing my Ovulation date further and I just tested and use the app results and it said Positive it’s weird I’ve never Ov this late Will you ladies tell me what you think Does This Look Positive