I don't know if it's my doctor or the normal thing to do in the U.S. but I have never gone before 8 weeks. It seems like a lot of doctors think "Well, either it will be a viable pregnancy or it won't and seeing a mother earlier won't change things" and they forget about the mother's peace of mind!
I think that even though for the most part if a person is going to miscarry there is not much that a doctor can do, there are certain circumstances that a doctor can do something, like an ectopic. Also if my baby stops developing at 5 weeks I would rather know then instead of thinking I am ok for another month.
I have never measured my hcg but I poas every other day or so just to see the line get darker.
here is a hcg chart for levels I found online. They vary so much!!!!
hCG levels during pregnancy
(in weeks since last menstrual period)
3 weeks LMP 5 - 50 mIU/ml
4 weeks LMP 5 - 426 mIU/ml
5 weeks LMP 18 - 7,340 mIU/ml
6 weeks LMP 1,080 - 56,500 mIU/ml
7 - 8 weeks LMP 7, 650 - 229,000 mIU/ml
9 - 12 weeks LMP 25,700 - 288,000 mIU/ml
13 - 16 weeks LMP 13,300 - 254,000 mIU/ml
17 - 24 weeks LMP 4,060 - 165,400 mIU/ml
25 - 40 weeks LMP 3,640 - 117,000 mIU/ml
non pregnant 55-200 ng/ml