Some advice on ovulation tests 🙈

I have been doing ovulation tests since the 16th March (2 a day - 3 at most different times) the time I do the 3rd usually comes back with just a control line.. the last one at the bottom I done today around 12ish.. I have been having sex since the 8th March near enough every day especially through fertile window and predicated ovulation day, however I’m impatient and unsure when to do a pregnancy test how many days DPO🙈?