My waters didnt break spontaneously. I was in heavy labour past 8cm and the bag bulged out my vagina! LOL It was a real shock as i was in such deep, mesmarising (sp) labour (natural) that i thought that something had herniated and that i was going to be rushed into the operating theatre. tee hee. The midwife tried to break with her fingers but the bag was really really thick so she had to cut with scissors. Anyway, as soon as they were broken there was a huge release and hendrix was born around 20 minutes later in the birthing pool.