D.M.
If he turns out to have some minimal hearing he can have special hearing aides made. My best friend's daughter is 2 and she uses them. Now she is learning to talk and she seems like any other 2 yr old. You will be amazed the advances there have been in technology and diagnostics. If your son is totally hearing impaired stay strong. There are many hearing impaired adults living normal and happy lives. Their parents got through it and you will too. Also, be happy about the special services. These are the people that will support you and give you the tools to support your child.
Also, just keep talking to him normally right now, maybe just do it up close rather than from across the room. Face him and have him face you when you can. It's gonna be okay momma. You can do this.