I had Aetna and part of their high risk "package plan" was weekly call for monitoring and I also got a visit from a nurse. See if your insurance company has something similar. I used to jot down and ask all those questions on my Friday call. The nurse who came to visit brought different items with her so I could feel them and see how hard a contraction might feel like. She also gave this analogy:
your stomach should feel like the tip of your nose most of the time
when you feel a tightening like the tip of your chin that's a braxton
a contraction will feel very hard like your forehead.
She also suggested to spend an hour a day (if possible) sitting down with feet up and monitoring your belly to detect any changes.
Definitely remember to bring the water and if you are getting braxton hicks that could be a sign for you to slow down and take it easy. I did not exercise nearly as long as I wanted because even walking gave me BH. Take care of yourself!