Wow..those are a lot of early appts! Here they generally do the first appt between 6-8 weeks, unless there are extenuating circumstances (i.e. under the care of an RE).
My first "real" appt isn't until next Monday, the 18th where I'll be about 8.5 weeks but I did go last Monday when I was 6.5 wks because of some spotting. We saw & heard the HB then
Try not to worry too much about not having many symptoms yet. For a lot of girls this doesn't kick in until 6 weeks. I thought I had a lot of symptoms just after getting my BFP but they lessened. May have been power of suggestion. There are a few girls in my DDC who still don't have symptoms and are more than 9 weeks along!