Baby’s fine but I’m measuring small?

Hannah

At my last two appointments (I’m going weekly now), my belly has measured small so I’ve gotten ultrasounds, but baby is perfectly fine and even gained weight between the appointments. The first time, I was 35+2 but my belly measured 33, baby measured 5 lbs on the dot. Today’s appointment, 36+2, I measured 32 but baby measured 5lbs9oz. Has anything similar happened to anyone else?