2 weeks ago I had an <a href="https://glowing.com/glow-fertility-program">IUI</a>

done and this past Monday (2 weeks later) I had a blood test that came back positive for pregnancy. They told me my levels were 54. My confusion is, what week would I be 2 or 4 for the hcg reading and do my level make sense? I’m worried they are low. I go back tomorrow (Wednesday) for more blood work. I’m wondering since I only implanted within a week of testing is why my numbers are low?