Anybody else's HCG slowing/peaking?

F
I'm 8 weeks today and just got my latest HCG results. They were doubling every 2-3 days up until about 6-7 weeks, then the doubling started to slow to every 4-5 days... Then last Monday the levels were 72,200 and four days later on Friday they were only at 95,900. 
The doctor said it's totally normally for HCG to slow and stop rising anywhere between 8-11 weeks as the baby is relying more on hormones produced by the placenta than by my body, and that ultrasounds are a better indicator of viability now. I've had three losses previously and never made it to this point where HCG starts to slow and it's considered "normal", so I'm naturally a little nervous lol.
Is anybody else at this point??