2nd Beta

Rachel

My 1st beta was 152 last Thursday (9dpt). I went back today for my 2nd beta, and it was 564 (13dpt). <a href="https://glowing.com/glow-fertility-program">IVF</a> coordinator said everything was good, but I'm confused. I thought it was supposed to double every 48 hours. If that was the case, it should've been at least 608 today. I've messaged them, but does anyone have any experience to help???