Weight Gain??

Mariah • Momma to 3 perfect babies 💙 12/11/17 and 2/26/2020 💙 5/22/2023

How much has everyone else gained at this point? I'm 25 weeks 2 days and only gained 4 pounds. Is this unusual? I feel like I eat a ton. Doctor hasn't seemed concerned. I'm 5'4 and weighed 156ish before pregnancy.