Braxton Hicks and cramps

Third baby and never had BH pretty easy to distinguish. I’m 31 weeks but the past week I’ve had a lot of BH(they don’t hurt) just cause a little trouble catching my breath, hard belly etc... but I’ve noticed I’ve been getting these maybe period cramps a couple a day but these hurt a little.... could it be contractions and I be dilating? I’m so afraid to have a baby early 🤣🙈