Change My Mind

So, only biological females can have babies? Is that what you are saying?

Well, it is possible to artificially impregnate a biological male, much like in the movie Junior; but such a procedure requires said male to take female hormones and be closely monitored, it's much easier to get a surrogate mother to carry the baby.

Yeah, and brain transplants will be science too

or eggs. ..or falopion tubes. . .or womb. . .or ability to form an umbilical cord. . .

That is where you are wrong, the umbilical cord does still form in the above scenario, but again it requires close monitoring to ensure it attaches to a suitable place (such as the small intestine) for the foetus to survive. It's a difficult, but not impossible procedure.