Help ❗️❗️❗️ pre seed users

Hey so I took a ovulation test yesterday and I had a line that was just about the same color as the C line . Took another test today where it didn’t even have a T Line . Today is the highest chance to get pregnant . Me and my boyfriend are going to use preseed . Do you guys have any advice from here on out ? And do you think we still have a chance to get pregnant ?