Pumping early

Amber
I'm 29 weeks and my boobs have been leaking A LOT. When I say a lot, I mean I'm changing the nursing pads out like twice a day. I had an appointment yesterday and asked my doctor if it was ok to start pumping and freezing it, he said it would be ok. I heard that it could cause contractions and early labor though so even though he said it was ok to start pumping, something still scares me a little. Should I just deal with my leaking boobs 24/7 or should I pump and freeze since my doctor said its ok? I don't know.