hcg levels low worried

Rei
I am concerned about my HCG levels. This is my first <a href="https://glowing.com/glow-fertility-program">IVF</a>. I had one frozen embryo transferred. I also did pgs testing. My first beta was at 49. I was told I am pregnant. I tried home pregnancy test with negative results. It has been two weeks after the transfer, and I am still showing negative on home tests. I am going in for another test next week.  I am concerned this might be a chemical pregnancy. Any thoughts. I am so worried.