T.L.
I have two boys from my first marriage, ages 17 and 15. My husband and I were married three years ago and have a 2 1/2 year old son. We do consider him any "only" child because of the age gap and also have wrestled with this issue. My husband was an only child and remembers wanting a sibling, so it was a tough choice for us to only have Alex. My husband did make a statement once that I'll never forget. He said he didn't think we should have another because he couldn't imagine having to share the love he gives Alex with two people, he didn't think it would be fair.
Just to turn the tables, I am the oldest of four and can't imagine how cool I think it would be to have had my parents to myself growing up...it is a tough issue either way :)