I wholeheartedly agree with the previous posters.
Due to infertility problems, I worked as a NICU nurse for 9 years before finally having a baby of my own. I had a co-worker who I otherwise respected and liked who insisted that I was unqualified to be a NICU nurse because I was childless. I basically told her to blow it out her ear. After having my daughter I did find that some of my opinions and persepctives changed a bit, not due to pregnancy, or the birth process itself, but due to the fact that I was now responsible for a tiny, defenseless human being. I don't think it necessarily made me a better nurse, because I think I was always a pretty good one (if I do say so myself

, it just gave me a different view on things.
So my point in rambling on here is that we all bring valuable experiences and insights to our profession. None is more important than any other.