Heat and pregnancy

Amanda • 🤔
What are the effects to a pregnancy test left in the heat? Cause I took a test in the store bathroom and it was negative. 
Like right was I was peeing on it. It did negative. 😂 and led ft there for 3 minutes. And it's till negative. And I still have it. So it's still negative. 
I walked home in 103 degree weather. And I want to take one again. Again cause I'm getting anxiety. And I know I'm 100% not pregnant. Still just nervous. Cause when I'm alone. I over think everything. 
And the box said to have the test in 80 degrees weather. So will it mess up my result? And am I just over thinking it now? Ik Ik. I don't plan to have sex anytime soon. This was just my first time. So it made my period all funky and cause of stress from the pregnancy scare.