My period is late could I be pregnant ?

I am currently 4 days late on my period tonight will be day 5 of being late.

My last period was 03/04/2024

Av. Cycle Length is 35 days

I had sex outside my fertile window not during my fertile window.

I had sex after my fertile window on days 03/30 through 04/02

He came only 3x total 🥜

My period was expected 04/05/24

my period it’s pretty regular

It lasts for 5 days total.

I took a pregnancy test yesterday it was negative.

If I was to be pregnant how long should I wait to test if it’s even possible I could be.. please leave comments!