if one of your boobs smaller then other before operation, likely it be same after.
when I had implants 9 years go at age 23, one boob slightly smaller but was unnoticeable. but I remember first few weeks the boobs look soo huge, till they hang down naturally. past years I’ve lost weight and skin on boobs become saggy
all I can say with time it will heal, give some time. don’t look at them, just take care of them and health. surely you will be happy