Chance for pregnancy ?

Hi just need some opinion . I started using ovulation testing cd 9 negative cd10 neg, but then cd11 positive (dtd) cd12 positive(dtd) surge was the darkest .

so I’m thinking I ovulated cd12 But the app says ovulation day was cd13 I only had slight surge but not as dark as cd12. But I didn’t dtd cd13 . Today cd14 negative surge . I only dtd 2 days . Do I still have a high chance or low chance with 2 days baby dancing ? Should I stil dtd cd15 eventhough I missed cd13 and cd14.