I showed almost nothing, standing up, till five months (my husband said I just look a little flabby). We have a pic of me in Dec, exactly a month before Lelani came and if I was not wearing a pgtop, you would not have known. I had very little fluid and a bad plasenta. Was looking forward at being big and pg.
But we had a "show" at I think it was 13 weeks. When I would lay on my back, there would be a bump to the left of my belly. I was extatic, I was showing. Told everybody, showed to the whole family. Turns out to be gas!!!