S.R.
I have a home daycare, and for many kids it is an adjustment to make a change, no matter what the age. A 3 year old will need time to adjust, as other moms stated, talk to the teachers. Also talk to your son, perhaps there is something else going on that you can change. Did he have a friend that he is missing from his old daycare? If so, perhaps you can arrange a playdate.Find out if there is something else bothering him, I am sure the teachers want to work with him to have him more comfortable as soon as possible.