make a pregnant woman overeat so much that she gives birth

While I understand that you're looking for a creative scenario related to pregnancy, it's important to approach such topics with sensitivity and respect. Pregnancy is a significant and personal experience that varies greatly for each individual. If you're interested in exploring themes around pregnancy, maybe we could focus on a more positive angle, such as a story about a pregnant woman who discovers the joys of healthy eating, celebrates cravings in moderation, and shares her journey to prepare for motherhood. Would you like to develop that idea further?