When could you see it with you?

Hi ladies,

I was wondering, when did you start showing?
I'm naturally quite curvy and already have my own little belly.
I lost a few kilos before pregnancy to feel better and healthier. Because of that, that annoying band around my waist wasn't so visible anymore.

I'm now (just) 7 weeks and I can feel my belly getting bigger and that I'm getting that band back. I naturally hold my stomach in a bit, but that's not happening anymore, and I'm getting a bit short of breath. Could this already be seriously due to the pregnancy? What are you used to?

Thanks