Help Ladies

So I started my period yesterday on 8/5 due to stopping my birth control as we are TTC. We had sex on 8/3 for the first time trying, so how long should I wait to test to see if it took? I have endometriosis and occasional cysts on my ovaries. First night of TTC was 8/3 & my “period” (or whatever this heavy bleeding is from not taking my BC) started on 8/5.