Well if she conceived a month before they were married, the baby would have been due in January and would be 4+ months old by now, so that seems unlikely.
The photo going round of a MM lookalike with Alex Soros is not MM, but probably Hannah Motley.
Thoughts on the baby's parentage can get quite tricky when you start to think about what could be achieved…best not. How fortunate they could be visited at this time by friends like Mrs Obama.