Beta Results Are In!

I had my beta #1 on Monday, it was 6,723! Doctor was very pleased. My second beta was today and it was 12,244. Doctor is still pleased with results and I have my first ultrasound scheduled for 11/25.

I thought the numbers were supposed to double?? This is almost 1.9x more but not double so I’m a little worried. Of course, I googled and it says women with super high betas to begin with take 72 - 96 hours to double and I had mine only 48 hours apart so I feel a sense of relief, however, Im wondering if any of you ladies had similar beta results?