All women are different in how they carry. I went out with some friends when I was 6 months pregnant, and there was a baby shower at the same place where the mum-to-be was only a week or so ahead of me. She didn't look pregnant at all, whereas I popped at about 18 weeks. I was saying to my friends "my baby has a fully furnished apartment in there, where is her's living!?" 🤣 Another friend of mine was able to fit into size 6 jeans all the way through her pregnancy. All women are different, so don't worry. However I do understand why it might upset you, a lot of women want to have that bump and appear pregnant. Personally? Sometimes I wish I could take the bump off for a couple hours and just be me.
Your friend was well lucky, I haven't been a size 6 my entire life lol x
It's highly possibly you're carrying more in the back than the front. So the bump won't be as prominent but as baby moves forward and into position to make their entrance you may well pop. I stand next to a young lady who is not even 20 weeks and she looks bigger in bump than I do x