Well, if modders want to give a shot at expanding the game once I am finished with it, I probably wouldn't mind. :)
But chasing after this mid-development isn't going to happen, it would be too time consuming.
The main problem would be going through all the sex scenes in the game, and either add a "well, I am not going to have sex with a pregnant lady" message, or add alternative sex scenes, plus adding comments from all the people who likely would have something to say (for example, your parents and Alpharius, as well as many more) and this is on top of any other fringe interaction which might be weird if you are pregnant.
Basically, the game isn't enough of a sandbox that you can ignore context that easily, and it would require a LOT of writing and manually editing hundreds of NPCs just to keep things believable.
I definitely wasn't expecting a pregnant woman being compared to the Death Star when I woke up today, that was a good laugh. XD XD XD