Baby poop!


I just switched my daughter from breastmilk to formula (just found out I'm pregnant), I have some breastmilk frozen that I'm mixing with formula but my daughters poop has changed! TMI! it used to be wet and kind of pasty, now it looks dry (not pebble like) and sometimes has clumps on white in it. Not sure what to think! Idea? Thoughts?? Anyone else do something similar?