4 Months

12.5 Weeks ~ 1.7kg

11 Weeks ~ 1.5kg

10 Weeks ~ 1.31kg

9 Weeks ~ 1.18kg

8 Weeks ~ 980g

7 Weeks ~ 822g

6 Weeks ~ 723g

5 Weeks ~ 645g

4 Weeks ~ 539g

3 Weeks ~ 429g

2 Weeks ~ 337g

1 Week ~ 220g

Newborn ~ 106g