it is possible you are further along in your pregnancy than you thought. however even at six weeks your child is growing rapidly and you just don't have as much room in your stomach for food as you did before becoming pregnant. you should try eating smaller meals several times a day rather than trying to eat one large meal at one sitting. you can safely eat five or more smaller meals to prevent the feeling of being too full and still get the nutrients you need for yourself and your growing child
why do i feel full at 6 weeks pregnant. im only 6 weeks pregnant and this is my third child i feel so full lately where i cant eat much at all. and im already getting up to go to the bathroom during the night why would this be