Anxiety about my little one HELP

Okay I'm just wondering is it normal to worry about your little one during pregnancy? I just seen a doctor last Wednesday but since its been so long since i since the doctor and heard my babys heartbeat I worry a lot now...its like I'm 8 weeks today and I really wanna go to the doctor and make sure everything is still going okay I have been super cautious with everything that I do I sleep cautiously at night I wanna make sure I do everything right to ensure that my little one is safe I think I'm getting anxiety over it. Help has anybody else gone through this.