Okay so I'm 30 weeks +1 and already dilated to 3 cm and 100% effaced due to having a short cervix to begin with, this morning I woke up to my underwear being wet but not too bad, been having this off and on now today ,and had very light pink discharge, not sure what it all means and on top of it I'm having contractions bout 4 to 5 min apart with a lot of pressure, what does it mean?