Constipated baby help!!

Mackenzie • 🌻Horse rider🌻I love some makeup 🌻

My baby is constipated! She hasn’t pooped since yesterday and it was kinda hard. I tried to call her pediatrician but I couldn’t get ahold of them. She is formula fed and breast milk fed. I’ve been giving her only breastmilk today, and she gets a warm bath everything night. I’ve also tried massaging her belly. She has a dr appointment Tuesday.