Hey mama, Here’s a good article which mentions weight by WHO standards: https://www.google.com.sg/amp/s/www.pregnancybirthbaby.org.au/amp/article/understanding-baby-growth-charts May I ask what was the weight of baby at birth and also, if you’ve gone to the PD for a visit to help allay any of your fears and anxieties?
Maybe you can try s26 gold or dumex dulac. I tried s26 gold and my girl gain weight. Previously i used similac but realise not really suitable for her. But again, different baby different pace of growing. As long as baby is gaining weight. Should be fine!
My gal on full breast milk and is currently 7kg at 4.5mth. let me know if you want some to feed your baby.