Heya — straight off the bat, haven't had to deal with this in game so far, so open to talking it out.

But I personally really wouldn't encourage apping a pregnant character. The gameplay involves a survival aspect, and so far characters have dealt with heavy deprivations of food, energy and agency, along with frequent injuries and magical or stamina depletion. To make a long story short: there is a very high risk an unborn child would not survive the voyage.