9 months ~ 3.1kg

4.5 months ~ 2.27kg

12 weeks ~ 1.4kg

11 weeks ~ 1.25kg

10 weeks ~ 1.15kg

9 weeks ~ 971g

8 weeks ~ 907g

7 weeks ~ 771g

6 weeks ~ 645g

5 weeks ~ 517g

4 weeks ~ 429g

3 weeks ~ 333g

2 weeks ~ 248g

1 week ~ 181g

newborn ~ 110g