P.M.
Sounds like maybe you aren't nursing enough. You should ALWAYS nurse first, give additional food items after. She's coming up for a growth spurt, and that may be part of it too. Most of her lipids, complex carbs, vitamins, sugars, amino acids, etc should come from you... not pureed foodstuffs with added yucky food coloring, fructose, fillers and preservatives.
You nurse first, offer foods after... get over this growth spurt coming up and you should go back to normal. Pumping is good if you want to stockpile your milk - you never know what may happen and breastmilk is good for TONS of things. Google it sometime!