Please help me out

Hello, I had sex last Sunday the 30th with condom and taking my birth control pills on time the only thing I'm insecure is if any precum went on the outside of the condone while putting it on and because

I'm in Greece the weather is so hot And in the house I'm worried that the heat could have made them less effective is that true and will I still be protected? The temp is around 28-35 outside and most likely inside