Sounds like an impulse of some type - I'd suggest just talking with a therapist to find out what could be causing it. Maybe lack of something in childhood or whatever. If you had a good family and want to start your own - you have to make sure you would have a wife who was on the same page as you. If you just want to be a baby-daddy, then that's not responsible for the child(ren).

Sadly, I got my girlfriend pregnant at 17 and her parents pushed for an abortion. Was a good idea at the time as it would have messed up my career and life (I think). I was a freshman in college and started dating and then that happened. I regret going through with the abortion but I didn't have much say in it.

Now, decades later - I am happy I waited. Got married at 30, had kids at 31 and 35 (we now have to great kids). I still play with the kids and do active stuff that you may think you'll not be able to do if you wait. If you keep in shape into your 30s and 40s, no problem there having kids later.

I can also say that I was adopted - my parents were young and were into their 2nd marriage and already had 3 and 4 kids between them. I was "extra" and was given to a couple who wanted to have one. Their impulse was my mother had hit 45 and not had a child yet so she asked her 62 year old husband for an adopted baby. Other than the super-age difference, my mom raised me well (of course, dad died when I was 6 so things were a bit tough).

People want stuff now. In our credit card generation and instant gratification of things like video games - we end up thinking our impulses are things we should and are entitled to act on. We all have to say to ourselves "is this an impulse or is it something that is needed to survive" and work from there. We have to have the ability to fight our impulses. I'm teaching my kids that now - when they want something, I help them see whether they really need it or just want it. We rarely have crying/screaming situations like I do see with some families who give in which I think teaches the kids to act on impulses more as they get older.