Hi ladies, my little man is 4 months old and has only had breast milk basically since he was born. Recently we had to supplement some formula with my milk, with some trial and error we seem to have found a formula he likes. However it’s been 2 days since he has pooped. He normally poops after almost every feeding. Could this just be the formula is new to him? I know some babies dont always poop everyday but he has since he was born pooped after almost every bottle. Anyone else have a similar experience? We have his 4 month check up coming up but I get nervous, first time mom here! We tried burping, bicycle kicks, gas drops, and tummy time and belly massages but nothing seems to be working. I just worry the formula is making him constipated. He’s only getting 1oz of formula and 4 oz of breast milk so it’s not that much. Any advice would be appreciated ☺️ we just started to introduce him to it on Saturday