bump size matters?

Hi po sa lahat. I am 26 weeks preggy na po going 27 this weekend. My old OB doesn't have problems with my weight and small bump. Kaya lang my mom wanted me to transfer sa OB nya na nag pa anak daw samin lahat na magkakapatid. So ayun nag transfer napo ako. But her OB po told me my bump is small (kakastress) ? so pina take nya ako nang MORIAMIN FORTE for a month and I gained 3 kilos. My height is 5'5 and medium build. From 54kg to 57kg agad. Stop na kami sa moriamin forte then after a month I gained only 1kg again. So balik nanaman kami nang moriamin ngayon. ?? i keep hearing my bump is small blah blah but i have small baby bump din sa first baby ko. Lumaki lng nung 8 months na ? nakaka stress napo. I keep eating din naman. My baby is very active sa tummy din so does bump size really matter?