I’m not sure about her instigating the anti-women whatever regarding Megyn. But you are correct about her husband and baby - she was pregnant with the baby when her husband died. I don’t know much about her except what I’ve seen on Fox - I think it was BOR that often had Mary K and Juan on at the same time to debate various issues - conservative v.s. liberal. She may have been on other Fox shows, too, such as Outnumbered.
Iirc Katey Pavlof and she went to the creep who disinvited Trump because of making comments about Megyn being on period. Which was completely false. KP is part of the Gang of 22 of NRO.