hcg is important because the number are ment to 2x every day in a healthy pregnancy this can help you know if the pregnacy is normal and helthy but if your having a scan soon u neednt worry. but i had an early scan and they couldnt see a hb but went back 2 weeks later and there was a tiny hb so dont worry if they cant see your very early x
Did they do a transvaginal ultrasound? That trumps hcg levels - by 7 weeks, you should be able to measure the fetal pole and see a heartbeat. Oh - I see you're getting your first u/s in five weeks - can you ask for a u/s now?
Like Quinns momma said, most offices do u/s's at the first appt to date the pregnancy and check out the status of the pregnancy to see if it's progressing normally.
My doctors office is the same way. They do blood to check progesterone levels but will not do a beta unless there is a history of previous loss. It is quite common for a doctors office to have you do a urine preg test and no blood preg. My office does however perform an u/s at the first visit if you are btwn 7 and 8 weeks to see of there is a HB.