I never had BH with DS so i cant really confirm them. But the contractions i had started in my lower back, just a dull ache that would stay for about 30 seconds or so and then stop. Over time they got closer together and more stronger to where i could also feel it in my lower tummy (where youd feel period pain). I didnt believe i was in labour until they got alot stronger as i thought it was just my body playing tricks on me.

Unless you are getting them pretty regular id be more inclined to say theyre just BH. The nervousness thing is common i think. Just hang in there and keep an eye on it.