What’s the chance? Had sex 3 days ago.

Was wondering what are the chances/ percentage of me getting pregnant. I had sex Thursday morning & I done a ovulation test it said negative but today is Saturday I took another test an it said positive meaning today is my peak ovulation day. However I heard sperm can last up to 5-7 days in your body so up to your ovulation and a day after. What would the chances of me being pregnant. I mean can I get pregnant or does it have to be on my peak ovulation day? Any answers I would appreciate. Thanks