Just worried 😕

Hi ladies I know that everyone tell us not to worry and stress because it only makes things bad for the pregnancy. But all I can do is worry. I got my Hcg levels done on 13dpo and they were at a 30.3. They did double writhing 48 hours. But with my daughter I remember being terribly sick. But right now my boobs may ache and I might cramp and have lower back pain but honestly that's about it. I have my first appointment tomorrow and I'm praying that everything is okay.