Why am I not showing yet?

I am 3 months pregnant with my first child and I am 20 years old why am I not showing yet. I have a friend who is 3 days further along than I am and she is showing quite a bit. I feel stupid for wanting to show but when I tell peopel I am pregnant they dont believe m an di have to pull out the verification letter from my doctor stating that I had a positive hcg result on my pregnancy test. I guess I just have to wait till my ultra sound in a week to prove it.

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D not worry. 3 month prengancy may not be visible. After the 6th month you will not have problem with this.

Don't worry!
It all depends on your body. My friend is 28 weeks pregnant and you cant even tell. You will probley start showing around the 5th or 6th month.

It is completely normal not to show during your first trimester(one-three months). I recently had my first child in December and I didnt start showing until my fifth month. And I blew up in my 8-9 month wow... Dont worry about it, it is completely normal... your probably having a girl..lol.

it all depends on you and the baby depending on your size and stuff like that I didn't start showing till about my fourth month and now I'm almost seven and I look like I got a beach ball in my shirt just wait youll start to show soon