Beta HCG

Hi friends! I recently found out that I am pregnant and my first beta hcg results were at 51 which is the highest they’ve been on my 1st draw.

I went for my 2nd set 48 hours later and they were at 81.

Has anyone also taken closer to 72 hrs for them to double? I’ve heard they’re supposed to double every 48-72 hours. Am I just early? Do my numbers take longer to rise?

I have a history of early miscarriage. I’ve had 2 in the past due to low progesterone but have been on medication for it since we found out in April. I’m so nervous for my next draw, my cycles are longer than most causing things to be difficult. I’ve had no cramping whatsoever and my line progression on my tests are getting significantly darker each day.

I’m trying not to get my hopes up. But trying to stay positive!