I believe my boyfriend is thinking somewhat like RyanC. About the energy of beeing a good father and takeing his "share" of the responsibility. I think he's worried that we would put too much responsibility on my shoulders and that he won't have the energy to carry "his weight".
In addition he likes the freedom that comes with no kids.
Plus he hasn't really been around kids that much. He doesn't have that many relatives that he actually has contact with, and he only has an older brother and sister. And he has never even held a baby.
Myself has tons cusins and a 7-8 years younger brother who I started babysitting quite early.
Personally I adore and love kids. I've thought some about adopting instead of risking that our children will grow up struggeling with EDS, but one isn't guaranteed a healthy and non-disabled child through adoption either. One might even end up with a child with a more serious condition than EDS. I would love to be pregnant some time, even though the delivery puts me off some