Ovulation test results cd 15

Georgia

I have recently started trying for a baby and am getting into the swing of ovulation tests, my cycle is usually on the shorter side around 25-27 days every month, I have usually had my ovulation day by now according to my app, but this month I still haven’t yet had my positive ovulation test yet, I took this one today and now my app is saying I will most likely ovulate on Sunday, which means it’s putting my cycle at 30 days! I’m confused am I going to ovulate this month or not, I’m worried!