HCG/Progesterone

I am about 4w 3d today from LMP. My HCG levels have more than doubled. As of yesterday I was at 1864. I feel good about that number, BUT my progesterone for yesterday was 16.9. The doctor said "the minimum should be 10, but that infertility specialists perfer over 15" but for some reason this is just not putting my mind at ease!!! I'm freaking as I read things online about higher progesterone levels at the same weeks along as me! Does this seem normal? Have any of you guys had your progesterone levels checked to compare some?