16 week checkup coming , im nervous🤞🤞😕

So I uave my 16 week check up next week (when I'll be 17 weeks) but for some reason every time a couple days before my appointment I get nervous😕😕. I haven't gained weight like at all and this is my first. I just want everything to be going well so badly it makes me anxious until I know for sure!! Can anyone relate??