I’m in the same situation as you. I’m 31 weeks and have lost 5kg compared to pre pregnancy. I have no nausea throughout pregnancy and I eat my meals too though I curb on carbo due to GD. My hubby is very concerned with my weight and keep on asking during all my gynae appointment. My baby is on the healthy range & my gynae says that as Long as baby is growing well, it’s ok.
You are blessed if you did not gain weight and baby is growing normally and healthily. 😁