13 weeks pregnant and not showing at all

Victoria 👻 • Married to the man of my dreams and waiting for our baby boy to arrive on 5 March, our 2nd!!!:)
Hi ladies, I'm almost 13 weeks pregnant and fitting into my tightest clothes and my tummy looks almost as toned as before the pregnancy...now, usually I wouldn't be complaining but I'm almost in my second trimester and seeking some reassurance that its possible to lean out. I haven't worked out in over a month but I also seem to have lost my appetite, I literally feel full all the time. I was only nauseas in week 9&10. Has anyone else had a similar experience?