If my old period was august 26th, and i was meant to have my new period September 23rd and i didn’t have it yet but had sexual intercourse on the 19th of September, can someone explain why this is if i’m not normally late, and i’m unsure if i ovulated or when but i do know my sex driver was through the rough on the 19th as well. i’ve also tested october 1st and that was a very very faint line and i just assumed maybe either too early or evap and i’ve tested again too and nothing as well but that was negative too but i didn’t test early in the morning like i did those last ones as well.