Missed Pill for a Week ‼️

Ke
I have been on Lo Loestrin Fe since October 2016. This month, I had some insurance complications and have been without birth control for a week and have to wait five more days.
This morning, I had EWCM and cramping. I took an OPK and got a faint line. My SO and I had unprotected sex yesterday and I'm kind of scaring myself, lol. 
I know there's a possibility and was wondering if anyone else has had something like this? I have one child under one and don't really remember anything prior to having him.