Nervous! 5-6 weeks!

I'm 5-6 weeks pregnant with my first child! My husband and I are so excited, but I am also trying not to get my hopes up just in case something doesn't go right. I have my first appointment in two weeks( which feels like a year from now) everything seems to be on track, nausea just kicked in two days ago and I'm exhausted but I still don't want to let myself get to excited. Did any first time moms feel this way?