Left BC pill pack in a hot car??

Sandra • S.B.
I'm 22 years old and finally decided to get back on my 1.5-30 dose of generic Loestrin, not only to avoid getting pregnant but to help with my acne and recently very irregular periods (I didn't have one for two months but blood tests confirmed I was not pregnant-- scary!) 
I started the pill almost a week ago on Day 1 of my period and so far there haven't really been any side effects, which is odd considering how bad I immediately struggled with dizziness, nausea, and breakthrough bleeding when I took the same brand years ago.
However, I drove straight to work after picking up my first pack from the pharmacy and left them in a purse in my car, it was probably 84 degrees Fahrenheit at the highest that afternoon, but not humid. They were in there about 4-5 hours... Has anybody else done this and been ok? I know I'm probably being paranoid cause if this was a huge problem a high number of people would probably be getting pregnant in warmer states lmfao.