Originally Posted by eubi
Not a dumb question at all.
By any chance, did you tighten up the nut on the presta valve stem? This is a one-way trip to tube disaster.
It should be loose, and many just throw it away.
This is my guess as to the cause of your problem.
...and welcome to Bike Forums!
Thanks for the welcome. I think I loosened it first but it's possible that I didn't loosen it enough, or forgot. It was evident that I didn't have everything properly ready because it was not letting me inflate. As I was removing the pump to re-attempt I broke the valve stem. So maybe this was the problem.