IUGR BABY and I'm losing weight..is it normal?

So I'm 32+5 and my baby is measuring small. Below the 5th centile. They want to induce early but not sure when. But why is it I'm losing weight when I'm eating properly? I was 65kg at my booking appointment. Then I was 65kg at my 28 week appointment and now I'm 61 kg? I feel like my bump is too small and baby has literally no space to move? Even tho she's tiny.. is this normal?