I'm going back to work soon and I will be pumping with the Medela pump in style. I will be able to pump 3 X's during my 8 hr work day. However I will only be able to fit 10 minutes in for 2 of the pumping sessions. Luckily i can swing 15 to 20 minutes for the other one. Does this seem reasonable enough to keep my milk up? I hope so!! Also, should i still be pumpinh on my days off? Thanks ladies.