XP: building stash

RockyRoad3

How often and when should I pump to build up a stash of breastmilk for when I return to work?  So far I've only been doing it after her morning feeding, and I'm getting about 1.5 ounces total.  I'm hesitant to pump after every feeding because I don't want to overload my supply and end up engorged again.  That was so painful!

I also want to have some supply built up for when others watch her, so I don't have to be available 24/7 to feed her. 

So how often should I be doing it?

Thanks everyone )