Thank you for your feedback! I've thought it over, and I think the safest way forward might be to have a short scene of a couple of sentences at the end of the pregnancy, stating that the birth was a success, and it's been agreed that your son/daughter will be raised by their grandparents. Then they are never mentioned again, and the game carries on as normal.
Ultimately, Second Helpings is an erotic fetish game & I don't want children (or anyone under the age of 18) anywhere near that.