@primarye I was 439 at 14DPO, then 1461 at 16DPO (a quadrupling in 2 days!), then 7300+ at 20DPO, then 23,000+ at 23DPO, and finally 69,000+ at 28DPO. At that rate, I was projected to exceed 200,000DPO in the 1st trimester and was worried about all the things Dr. Google will tell you to worry about.
But am now at 24w with a healthy singleton pregnancy.
(I should say that the last few betas were self-ordered out of anxiety as I was on my 4th pregnancy after 3 back-to-back losses. There is no good reason to keep testing more than 2-3 times very early on because after that, an ultrasound is a much more useful piece of information, and we all, even those will losses in our past, should eventually learn to just wait. I, meanwhile, continued testing and then freaking out about my betas getting too high too soon, which didn't help at all. Do not recommend.)