Low HCG levels

Hello I had my first HCG test on Monday when I was 4 weeks 4 days and my level was 124. My blood was drawn at around 8am Monday. I don't think the time is important but just in case. I just repeated my test Wednesday at 4 weeks 6 days. On Wednesday my blood was drawn at 11:00am. My level from Wednesday is only 275. My doctor hadn't reached out to discuss it with me yet but I'm worried that the numbers aren't looking good. Has anyone experienced this? Do these numbers sound bad? I had a miscarriage in July and I'm really worried.