I am a female 30 year old chinese citizen. I have been in the U.S. visiting my mother.

I just had a baby in the U.S. The baby (boy) is 2 months old. I have to return to China in February which is when my 6 month Visa runs out. My son has a valid passport. What kind of Visa or paperwork do I need to get done so he can come back with me to Beijing. I am staying in Florida. I know the nearest Chinese consulate is in Houston. Do I need to go there to get any travel visa/paperwork and if so, can I do this myself or does my 2 month old son need to be there in person. Also, do I need to go in person or can this be done through a business? Lastly, there is no father on the birth certificate (not married). Is this any issue with getting the needed paperwork for my son to travel back with me to Beijing? Thanks very much for any help with this issue.