Baby weight gain

Aleksandra • Boy mom 7.7.21

How much weight since birth your baby gained?

My son was born:

52 cm

3,520 kg

At 4 weeks he was:

4,700 kg

Today, at 5 weeks he is:

58cm

5,350 kg

My son gained 650 gr in a week! I am just wondering if it is normal weight gain.