Anyone else have this problem?

Trella • Wifey 👰🏼 Mommy to two angels 👼🏼 Rainbow baby born September 2018 🌈
Hey ladies! I have a question. So Monday I had some blood work done due to measuring a couple weeks behind, and below have been my levels up to this point, based on the updated dates.
May 22nd, 3+1 - 2,000 hCG, 21.6 progesterone 
May 24th, 3+3 - 4,000 hCG, 21 progesterone 
June 12th, 6+1 - 38,000 hCG, 13.4 progesterone 
I go back for my repeat tomorrow, but I feel like my levels were pretty high starting out, and have kind of normalized all except the progesterone. I know the doctor said anything over 10 at this point is good, but has anyone ever had that much of a drop in just a few weeks? I hate being a worry wart, but can't help it given my past experience 😐