would this make sense

This might be dumb but i need answers lol 
My periods are irregular and we were ttc but we stopped "trying" about a month ago i got a period last week and since then weve been "doing the deed" i still have been taking my prenatals (because i heard it was good to take them while ttc and during pregnancy) but how would i determine when i would take a home pregnancy test ? My period was from August 2nd-7th so should i just wait until the middle of September to test ??