There will be artificial external wombs (some work done already with premature lambs in incubator bags) before we can sustain a pregnancy in a Male.
Not going to happen any time soon. No space, no vasculature, no support ligaments. The female body compensates for the foetus in many ways - increasing blood volume, for example. The womb isn’t a plug and play item you can shove anywhere, it’s the sharp end of an entire physiological system working in harmony.
I suspect like PPs have mentioned men wouldn’t be able to cope with the immune changes either.
The very idea shows how little men think of and truly understand pregnancy and the female body. They think ‘baby grows in womb, so if there’s a womb I can have a baby.’ They don’t understand that the womb is just one part of the complex system.
It will be less of a technical challenge to create an artificial womb than to have a man gestate and give birth