Is it normal for baby to poop 1 time

Lena • 🌹4-01-18💕💕

My daughter is 3 weeks going to be 4 on Sunday but she poops once , she’s on formula. On 4/25 she didn’t go all day or night. I showered her on 4/26 at night before bed and she pooped. I’ve heard babies r supposed to be pooping at least 2/3 times a day