Understanding chances of pregnancy?

Sam • •Married💍• Momma to 4 ( including twins)• 5 losses👼🏻•Aps•

So I have 4 kids and don’t even understand this lol. So if you are ttc and your <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> okay and let’s say you have 3 fertile days then full on ovulation does your chance of pregnancy go up by having sex everyday cause wouldn’t that make sense? Or is it just 10% the 4 days before then 30% days of ovulation so it’s like 40%? I feel like I can’t explain it but I know what I mean in my head 😂