Could I be?

AF is now on its 3rd day being late. I tested at 11dpo with a cheap Walmart test and got a BFN. I never tested again after that. I don’t have any signs of AF starting. I stopped taking BC June 26th. I’m not sure if my period is late because of that or what. I will probably test today or tomorrow if AF doesn’t show. Has anyone had any kind of similar experience with stopping BC?

Update: I just took a first response test and it was definitely negative 😔 I got the Rapid one though so not sure if that changes anything. Now I just have to wait for AF to surprise me 🤷🏻‍♀️