To counterbalance the previous comment: I had my children when I was in my twenties. Now that I'm in my forties I'm very glad I didn't spend all those years chasing a career, rebuilding a house,... as so many of my peers were doing. I'm glad I saw my children growing up and could always make time for them. So it really depends on what is important for you. However if you have a Big Dream, now is definitly the time to start taking steps towards that goal.