"Yes," Gina said. "There can be complications; sometimes the egg doesn't set, and you get a miscarriage, but with us it was fairly straightforward." She rubbed a hand over her belly again, just for the feel of it. "As far as I know it can work with two men, but they have to get a surrogate mother, a woman to carry the child to term. Men don't... they can't carry a baby."

They didn't have a uterus, for starters.

"But," she added, "they're developing something called an artificial womb. When it's finished you can just put a fertilized in one and the baby will grow to full-term there. Safer, and that way men won't need surrogates."