vonvon,
congrats. No worries, baby usually gain weight after 2 weeks. 1.99kg, very easy to catch up. (My ray is only 1.89kg at birth, at 4th day or so only 1.74kg ) Megan looks great. actually at 35 weeks onwards, they will store up fats,that's why will look chubby at birth. for premature baby, they will look thin, but will be ok as long as they can suckle well.
By 4 months, baby will be more chubby.
koli,
please take good care.