Just a weight question

Je
I can eat breakfast at 7:15 and by 10-10:30 my belly is grawling again. I eat a snack (some sorta fruit) and by 12 I'm starving again. Question would be am I not getting enough to eat at one sitting? Or nutritions?  Or maybe calories?? I have lost 3 lbs and baby measured right on time last appointment. And I also drink lots and lots of water.