4.5 months ~ 2.5kg

12 weeks ~ 1.5kg

11 weeks ~ 1.4kg

10 weeks ~ 1.3kg

9 weeks ~ 1.11kg

8 weeks ~ 1.0kg

7 weeks ~ 816g

6 weeks ~ 730g

5 weeks ~ 609g

4 weeks ~ 524g

3 weeks ~ 411g

2 weeks ~ 312g

1 week ~ 223g

newborn ~ 117g