The main thing is that you and your girlfriend are happy. I had my kids when I was young.There are pros and cosns to that but on balance it was the right thing for me. I just wish they could have stayed at 9 years old as they have cool toys and can do things for themselves but haven't got to that high maintenance stage that comes a few years later. Being a Dad is the greatest job on earth, I love being a Dad (even in the sad times and I have had more than I'd have liked of late). Congratulations.