It started quite early, about 20 weeks I reckon. The questions started. "So when are you due?" When I would say in another 4 months they would look at my belly in horror. Even people who ought to know better, such as a professor at work, took it upon themselves to tell me how enormous I was. All I could do was smile and say, yes, I am quite large.
I got quite a complex and would ask my midwife each appointment if everything was okay. She told me to ignore people's comments, and that everyone carries differently, but that is a lot easier said than done. By 30 weeks, instead of enjoying my pregnancy I was embarrassed. People would say things like "you must be due any day now", or my favourite was "you must be having twins". This was especially appreciated when a toothless wonder stopped me on the street to tell me about my twins. I was beginning to think the ultrasound was wrong and there were two babies in there.
I was measuring a few weeks ahead of schedule so ended up having a multitude of appointments over several weeks with obstetricians. An eventual ultrasound told me my baby is big, but not huge. 75th percentile. And even if it was massive they'd still make me try to give birth naturally, so there was really no point in having all the doctors appointments! Annoying.
I guess conversely women who carry small get comments about how small their baby is. People just seem to think that baby bumps are public property, and don't really stop to consider how it makes the poor mother-to-be feel. I'm now particularly careful not to comment on anyone's size, pregnant or not!