my baby can’t poop

Salea Torres 🕊 • ⟜ 𝐜𝐚𝐥𝐢𝐟𝐨𝐫𝐧𝐢𝐚 𝐠𝐚𝐥, 𝐥𝐢𝐯𝐢𝐧𝐠 𝐢𝐧 𝐦𝐢𝐧𝐧𝐞𝐬𝐨𝐭𝐚 𝐬𝐜𝐨𝐫𝐩𝐢𝐨 + 𝐰𝐢𝐟𝐞 + 𝐦𝐨𝐭𝐡𝐞𝐫 🕊

my almost three week old baby can’t poop and if he does it almost rock, what can i do ?