i am unsure why they would give her cereal, she is only 3 months old. it is recommended, unless medically necessary, to wait until 6 months when the digestive track is more mature. Who gave her the sippy cup? how long were you gone when someone else gave her the bottle? I would really not worry about it, she won't starve. She may get upset with the transition, but she won't starve. DD went on a bottle strike around 2 months old and would take just enough to curb the hunger, but it passed. I would just bring the bottles and sippy cups to the day care and hope for the best. hang in there!!!
Why Delay Solids? : KellyMom