Tire pressure

On my way to work this morning I heard a funny noise somewhere in the car. I thought maybe the breaks but I still heard  it when I wasn't pushing on the brakes. Then I thought, maybe my tire?  Mom mentioned the other day it was looking low and I think one tire does have a slow leak somewhere (that I thought I had fixed last time something like this happened).  So the last place to stop before getting on the interstate I decided maybe I better check. I was very blessed that I didn't get on the interstate before checking. One pot hole and the tire may have completely flattened. Sure enough it was very, very low. After putting enough air in I was on the road again sound free!  I'm so glad I got the feeling to stop and not try and keep going another 15 minutes on the interstate.  I was only one minute late for work too!