Braxton Hicks or early signs of labor???

I will be 32 weeks tomorrow, but today I have been experiencing what I am hoping is Braxton hicks. It's been a lot of lower sharp back pain that goes from my back and around to my stomach. I can feel baby moving so I don't know if he is just moving his position or not because he's been in my ribs. But it's been a pretty consistent 40 minutes of this. It's every 3-5 minutes that this happens but my back continues to still ache the whole time. With my first baby I was induced at 40+3 so I never experienced going into labor so I have no idea what it feels like. My hospital is 1 hour away from me so I fear going into labor and not knowing it. What should I do??