My daughter is EBF, but I'm noticing a sharp drop in my supply since she's finally started sleeping through the night. She currently feeds about 5 times a day, but I can tell she's not getting as much as she used to (gets frustrated by the end of the feed). I only pump about twice a week at work, and this last time I was only able to pump one ounce.

My question is, do I bother trying to supplement with formula if she's just going to switch to dairy in a few months anyway? Do I just keep breastfeeding and hope she's getting enough?