Right, I made it a point of saying that she could go the MILF route - but I think she's a little too prudish to consider pregnant fetish stuff - if she's concerned in any way about image or what her family thinks of her, I can't see her getting into the latter since that's pretty lurid and could earn her accusations that she got pregnant just to be able to film that type of content and exploiting the situation.
The impression I get when porn stars/sex workers incorporate their pregnancy into their material is that they're pretty depraved and don't give a fuck about the criticism they face. If she's also concerned about how this might affect the perception of her husband and people she works with (assuming that day job is still something she does), she has those people to consider as well.
The point I was attempting to make by suggesting she could go MILF-style with her content was that it was an option, but she might have trouble earning as much as she might by being fit and not pregnancy-ravaged. She'll only be able to ride the pregnancy wave while it's in effect - the MILF thing could last as long as she wants it to - neither are perceived as being as attractive as a hot blonde woman with nice tits and a big ass taking off her clothes and potentially doing other stuff (and therefore, she earns less money and has fewer subs long-term because she didn't capitalize on her attractiveness while it still existed).