48 hours rule??

So I just started taking Opill this Tuesday at 8 PM. I want to have sex with my boyfriend tomorrow (Friday), which would mean I would have taken 3 pills by then and it would have been more than 48 hours but not even by 12 hours. I’m really paranoid and feel like I should use a condom to be safe (even though supposedly you’re protected after having taken the pill for 48 hours.) Is it effective enough by now?? Or did anyone have unprotected sex this fast after having taken the pill and been fine?