Pregnant with twins 1cm dilated and 70% effaces hlw much longer and how fast will it go first pregnancy by the way.

Ask your OB doc !!!: You need to be asking your doc, as your doc knows what is going on with you, i assume u mean u are in early labor ? Because many OB docs myself included do not let twins labor anymore even if they are both cephalic so u need to be asking all of these questions to your doc and it is your doc's job to answer them as much best as possible.