braxton hicks that last for more than an hour

selena

ive been having Braxton hickd almost every day amd they last for more than an hour

when these are happening it makes my whole belly tighten(normal i know) amd i feel ALOT of pressure in my vagina... they are also like a stesdy 2-3 mins long that last 15-30 seconds long

im 31 weeks and never really had these for my other kiddos so i dont really know when i should worry.. should i worry?