the foetus
If the foetus can be apprehended and seen (detached from the womb), it will be a lot harder for the mother to consider it her child (or easier to remove him from her mind). It will also be a lot easier for us to desacralize him, as we'd see what's going on with him during every second of its conception and growth.
There is no question this would change our view of humanity. The church will certainly see it for the worse, but what about constant surveillance and care and freeing the mothers from so many risks involved?
Raoul