HCG-Beta

Sh

I had my first embryo transfer (2) on 11/29. On 12/8 I had my hcg beta test which came back negative (level was a 1). Sad all week. Got a call today (1 week after that blood test) that now it’s positive and the number is 77. I had what I assumed was a period a few days after the first blood test. Is there a chance this was a miscarriage? I know it couldn’t be an ectopic since I did <a href="https://glowing.com/glow-fertility-program">ivf</a> and the embryos went directly into my uterus. Is there an actual chance that I could be pregnant? Mildly freaking out!