Encounter 1st Tyme After My Last Pregnancy

Im 38 31+1 A : Hi, did anyone ever encounter that ur waterbag is not broke but ur contraction come frequent every 15 min that making you feel like pushing out and when you check it not dilate yet? B : Anyone has difficulty of moving ur buttock when sleeping example like you sleep facing when you wanna turn to left you have to support with ur hand lift up ur buttock to push a bit so ur buttock can move to other side? C : I have a vein in my left leg that can see clearly and it pop up terribly like a worms and it purple colour and some are like small stone which can feel if i press to massage.