Ovulation and this app

Helen

Hi ladies I need your help

Reading online about ovulation and I'm aware it's 14 days before your next period

next month my most fertile day is the day before the is sat 5th at 32% however the app is also telling me my ovulation day is the 6th which is 2 weeks before my next P

So which day is it? Sat at 32% or the 6th which it tells me is my ovulation day????

Help!!