Hello everyone! Mommies, can you advise something for constipation for…

Hello everyone! Mommies, can you advise something for constipation for my daughter? She's not crying or fussing even though it's been two days since she hasn't gone potty. Is this normal in her age? I used to go potty four times a day, then it became once a day, now it's been two days without going. I'm worried.