Hi!
Yes, progesterone levels fluctuate. If the number is less than 10, we get concerned about a non-viable pregnancy. So you see, your number is really good.
If you were my patient, I would probably not check any more progesterone levels. I would continue checking quantitative HCG until the numbers were over 2000. At that point, I would do an ultrasound to locate the pregnancy.
I certainly hope everything is where it belongs!
Good luck!
Dr B