Constipation help!! (2 years 3 months old)

I recently just stopped nursing my daughter last Friday & ever since about the beginning of this week she’s been SOOO constipated. I’ve tried apples, apple juice, her favorite drinks to try to get her to drink more. But she’s just really not a big eater/drinker and doesn’t help that all she ever wants to eat is her PAW PATROL Mac & cheese 🤦🏻‍♀️

Any recommendations? I hate seeing my baby like this & just feel like it’s totally my fault because I’m already pregnant and super emotional about having to stop nursing.