I would never refer to it as screwing yourself, but you are right, wait a little while. My wife and I were married for 4 months and got pregnant. A baby has made things a little harder, but I also have never been happier. Ask yourself what your ultimate goal is. Is it a great career, or being happy with what you have and enjoying the ride and not just the result. I personally am more of a family driven guy more than a career driven guy. I still need to figure out what I want from my career, but I know what I want with my life. Good luck with all the "easy" decisions.

AEFO