Debbie Downer?

I feel like I'm in need of some hope. I got my first positive pregnancy test Saturday morning and according to my last period I'm about 5 weeks. Havent talked to the doctor yet but calling them tomorrow. I just can't shake the feeling that I'm waiting on this one to miscarry. Idk why, I feel like it's because ive heard they're so common. I don't feel like I can get excited about anything yet because I haven't had many symptoms (just occasional dizziness, fatigue, and hungrier) and I'm my showing yet. We've been ttc for almost two years and he's excited but I can't ge there yet. Has anyone else had a first pregnancy not end in miscarriage?