PLEASE READ. Missed pill last pill but skipped placebo week

Ha

I did not take the very last active pill in my pack. I was supposed to take it on Thursday, but due to personal reasons I wasn’t able to take it until my regular time the next day. I did not double up, I was not allowed to (again personal reasons). So I’ve missed a pill entirely. However, I moved immediately to the next pack and skipped the placebo week. I’ve tried looking up this and haven’t found much info. Does anyone have an idea of how long I will need to use another form of protection?