Having some pretty strong contractions. Lasting 10 seconds each and 2 minutes apart. Hoping they…

Having some pretty strong contractions. Lasting 10 seconds each and 2 minutes apart. Hoping they stop so I don't have to go in. On another note, how can my sister get her water to break? She's 39 weeks and hasn't dilated or anything. She's just wanting her water to break, she has to have another csection. She has a ball and has been rotating and bouncing all day.