Contractions

Hello all, I'm not in labour or anything yet...but I've noticed with my 2 previous labours that it's almost like my body fights the contractions... instead of relaxing and letting things happen the way there meant to, it's like I try an put it off for as long as I can sorta thing like I be 3cm dilated for 24hours with barely any change, but then give me that gas an air and I've gone from 3-10cm in less than hour ahha...is there anyway I can stop my body trying to fight it?