Hard time pooping

Anabel • Mon, Nov 05 • Danny 10.17.18. Jayden 11.16.21.

Baby is 19 days old. I switched my baby from breast milk to formula yesterday. He hasnt pooped in about 24 hours. Is this normal? It kinda looks like he wants to go but cant. Is there anything i can do to help him? Do i need to take him to see his doctor? How often should they poop on formula?