Anyone else?

In their 3rd trimester and can't stop eating?! Or have increase of appetite???? Like I swear I eat so much. My schedule is messed up though. I wake up around 2pm or 3... eat my breakfast, snack, lunch, snack snack, dinner, sweets, snack snack lol I CANT HELP IT. I hope my baby doesn't come out a 10lb baby cause of my eating habits.... I'm so tiny.. 5'1 and pretty small. 
Can eating like that cause huge baby?? And what are some tips to lay off the sweets... ugh I don't wanna gain to much