Braxton hicks

This is my second baby and I’m 32 weeks. I’ve been having Braxton Hicks on and off all day. I took a warm bath and that helped for a few hours and then they came back. They are mild but pretty uncomfortable. I had them for the first time a week ago but they were on and off for just 45 minutes. But also, I felt great over the weekend and was pretty active, so maybe I’m paying for it now? Just makes me worried that this could be an indicator baby will be a preemie. Any advice or thoughts?