I've a female friend that has a phobia of pregnant people. Being near them causes her to cringe and makes her nauseous. She's also absolutely frightened of the idea of getting pregnant. Apparently, she saw a video as a child of a pregnant woman showing off her very ripe belly with the fetus/infant looking as if it was trying to claw its way out. Traumatized her. That said, she really wants to have children, and at least one of which is hers naturally (ie. not adopted).
Personally? I feel no jealousy/envy toward women about not being able to be impregnated. When I was in the hospital with a kidney stone writhing in pain, the nurse looked at me and said, "That's as close as you'll ever get to knowing what it feels like to have a baby". Good look with childbirth, ladies.:tongue: