18 weeks vaginal pressure

So a little back story.. my first child was a 35 weeker, my second child I had p17 injections and made it to 38 weeks. I’m getting p17 injections again with this third baby. My nurse who I see every week to receive the injections was a little concerned last week when I told her I was having Braxton Hicks. She told me she needs to be notified if I have more or I have vaginal pressure. Well today I’ve been on my feet almost all day, and I have had a few braxton Hicks and some vaginal pressure. Isn’t that normal for being on your feet all day? I would hate to get ahold of her at this time of night for something that isn’t out of the ordinary.