hi all! my baby is 8 months old & she has eaten all of the frozen breastmilk i had and i didn't realize we were out. so we've been trying to introduce formula for a couple of days now but she spits it up every time. i'm so stressed out because i don't know what to do. my pediatrician gave us 4 containers of similac 360 sensitive to try but that's what she's spitting up. not sure if we need to switch or keep trying? any advice would be awesome.

i am trying to build my supply up again but its hard with my work schedule now to fit in pumps. i'm lucky to get 3 oz a day now.