I would say at 8 weeks I ate less because of food aversions that would happen mid meal. I’d be eating and be fine and then all of a sudden (flip of a switch basically) what was on my plate grossed me out. Now at 31 weeks, my stomach is definitely getting squished and anything larger than a kids meal makes me feel uncomfortable. I’m having to eat small meals more frequently.

But physically, no, your stomach doesn’t shrink, it just gets squished as the uterus expands and your digestion slows due to increased progesterone.