How do parents save up financially?

Bought baby clothes, shoe, socks, diapers,wetwipes, Formula milk, baby shampoo and soap ,all on shopee ,redmart,lazada it's way cheaper then retail. People around you will buy for you things for the baby. Breastpump with bundles, with baby bottles and milk storage bought it at mummy's market . For baby cot I bought at IKEA with bundles, comes with mattress, towel,diaper changing mat,bedsheet,pillows,bathtub and blanket. I only bought most of the things after I give birth lol.