First time, input please? :)

First time pumping! I am currently 37 weeks along with my first baby! 
With my midwifes okay (we went over of course stopping if I feel contractions, only pump 1-4 times a day, etc.), I pumped 10 min to relieve some of the extreme leaking I've had and store up some colostrum just in case of emergency or need. 
Didn't hurt, although was awkward to figure out at first. I spilled some, but overall from both breasts combined I got 2 oz of cream-colored colostrum! 
How did I do?! :) it was pretty satisfying to put the bag in the freezer and know that it's there for my baby if she needs it!