Having Babies Young

I had a baby at 19. She's 4 now, and she is the world to me. Having her was the best thing that could have happend to me at the time, cuz it kicked my butt into reality. However, looking back, If I could have done it differently, I would have probably waited to have kids till I was done with school. I would want to go to med school if I didn't have kids. That is one regret, but i think that everything worked out wonderfully, nevertheless.