never_had_coffee

Unfortunately, there's nothing to do but wait. Applicants typically have until April 15th to make decisions, so you may not hear back until then. Programs assume that you're still interested unless they hear otherwise (such as if you email and say you have accepted an offer elsewhere). 

Unless you have a specific question, you just play the waiting game. Do not reach out just to confirm receipt of materials unless you believe something glitched out in the submission process.