BH contractions?

Katherine • "Females are strong as hell."

Hello mamas - I have a question, because I've never done this before. I'm at 37 weeks, and I've been having what feel like Braxton Hicks all day long (tightening all the way across the abdomen, not painful, very irregular). But they last for 10 seconds or less. I thought BH contractions would last longer than that. Does this sound like BH, or is it just Baby stretching and moving around?