Not that hungry 21 weeks

Hi Moms! I'm 21 weeks pregnant now and right from the start of pregnancy I haven't had any crazy cravings or feel generally hungry. I mean, I eat my meals but would skip rice or eat lightly during lunch or dinner. My family makes a big fuss when I'm not eating a complete meal but my baby has been growing fine thus far. I am also overweight so I honestly done see a reason for me to eat extra? And my weight gain has been insignificant. Lost 2kg in Trimester 1 cos of nauseous, gained it back from week 16 onwards. Can anyone enlighten me if I'm fine hahaha cos I feel great, baby is kicking tremendously, I don't see the problem? Hahaha