Ovulation Day Change?

Is it possible for your peak ovulation day to change from cycle to cycle?

Some background: I got married in June and went off the pill shortly after (like 3 weeks after). I had been on the pill for 15 years so now I’m tracking everything. Got my period right after going off the pill and started tracking.

In July my cycle was 32 days and my peak ovulation was on CD 18.

I’m currently on CD 13 and took an ovulation test and it was positive, like peak ovulation positive (pic below). Is it possible for your ovulation day change like that?

I’m obviously going to track more cycles and see if it regulates, just wondering if that’s possible...?