HELP! Pill not effective ?

Hi ! I take the combination pill ( consistently too ) and I went camping this last weekend I know that you shouldn’t keep your pills in a hot car so I put it in the cooler while we were out doing stuff... the pack was not on ice or anything just in the far corner where it wasn’t too hot. I then moved the pills in the car ( where we slept) for the night and it was kind of humid and I think that effects the pill ? I am sexually active and have been having more sex recently...... Are my pills still effective ? Am I still protected ? And how do you tell if pills aren’t effective ?