Nope nothing wrong at all! I didn't show noticeably to strangers until 25 weeks. Pre-pregnancy I was a size 4 and 5'6. Everyone is different and trust me the huge bump is overrated!
My husband says at 15 weeks it looks like I'm starting to show. I don't agree with him, but then my view is limited anyway. We're all different, that's all I can really tell you.
Everyone is different. I have a long torso and am slender. I didn't start showing at all until about 22 weeks. At 27 it looks like I swallowed a soccer ball - it came very fast.
Are all of your friends in the same stage of pregnancy, with the same uterus and body shape as you do? Highly unlikely. With a first baby I think it's really uncommon to truly show at all until about 20 weeks since the uterus is tucked tight behind the pelvic bone until 12-14 weeks. A lot of people mistake bloating for a bump.
I'm pregnant with twins and expected to be huge by now (24 wks) but I didn't get an obvious bump until recently - 22 weeks. It's still not that big and I get comments 'wow, your bump is tiny for having 2'. I have read that you don't get very big until the 3rd tri, not sure if that's true.
Re: 21 weeks pregnant and no belly
Trying since Jan 2011. Unexplained IF.
2 IUIs = BFN.
1 IVF (Dec 2013) = BFN.
FET, 2 frosties (June 13, 2014)
14dp5dt-June 27 -BFP, beta 2061. 2nd beta >5000, 3rd beta >5000, 2 sacs 06/30.
Twin Girls - 02/11/15 - at 37 weeks (no NICU, home with me at 3 days).
First BFP: 12/16/13
EDD: 08/23/14
Baby BOY born: 08/29/14