Implantation bleeding

Has anyone had a successful birth story with no implantation bleeding .? I'm a little worried I found out I was pregnant last Friday on the 17th I was supposed to start my cycle on the 21st. Of course it hasn't came but I haven't had any implantation bleeding and I'm a little scared. I suffered a miscarriage last year in August and I'm terrified my hcg levels weren't right from the start.🥺 I was supposed to have my appointment on the 22nd for the new pregnancy but the clinic messed up my appointment and they pushed it all the way to March 7th 😭 so I'm really in the dark.