help!!!

Rhonda • 👮🏻👩🏼‍⚕️, 28 years old, Expecting Anthony Dean Feb. 18th, 2018
I am 5 weeks 5 days. On Tuesday my HCG level came back as 4,892 and progesterone as 25.42. Yesterday (Thursday) my HCG came back as 12,634 and progesterone as 18.6. My doctor did not seem worried that my progesterone dropped claiming it goes up and down and as long as it's above 15 it's okay. I've miscarried before at 9 weeks so I just wanted to get some input please. Thank you!