CM after Ovulation

Heb

Hi ladies!

My husband and I have been TTC for about 4 months now. According to the app I ovulated on Thursday. We BD throughout the fertile window up until ovulation day. Today is Sunday and I am noticing REWCM (I hope I didn't butcher that acronym🙈). Is it more likely that I am ovulating a little later than the app predicted, or is it normal to have this CM after ovulation?

Thanks!