no gain 32 weeks and 4 days

Hello mommies. Last prenatal ko I was 114 lbs. Wala binawal si OB na food. Ok lahat ng labs. Hindi rin mataas sugar ko. And I eat five times a day. (i consider snacks as meals talaga kasi i eat a lot. Hindi ako nakukuntento oag hindi busog) Yesterday, i was back for my weekly prenatal (30 weeks up ata need na mag every two weeks) and when i was weighed, i was still at 114 lbs. Why dont i gain weight? Ok lng kaya si baby?