My husband is an only (adopted) child. My only suggestion is DON'T spoil him. (And don't tell my husband I said that). Let him try things, do things. Don't be over protective. My husband never experienced a single childhood disease (including chickenpox) because if his mother knew kids were breaking out she pulled him out of school. He was considerate enough to wait until after we were married before he got the chickenpox. It was miserable (for me.)

Your child is a blessing - so enjoy. Remember that people every where have an opinion and it doesn't make them right.

Also, you can always adopt if you want.