Hearing trouble?

Donna • First time mom of a beautiful baby boy married to a handsome mechanic just turned 21!
Ok mommas. Pediatrician says around 2 months baby should be able to turn head towards noises, didn't pay much attention until he said that so we've been trying to get him too but he's almost 3 months now and acts like he doesn't hear anything. You can snap your finger right next to his ear and nothing, try to get his attention on one side of him and still nothing but then dr says not to worry? So confused have any other moms dealt with this, how would you handle it. Need advice worried about my son not hearing anything.