balula- It seems to me like a new pregnancy, research shows that women are more fertile in the 6 months after a miscarriage, and since your first mc was so early, you probably didnt need the same (physical.. the emotional takes as long as it needs) recovery time as if you had mc'ed at 8-10 weeks.
If you have an appt for blood work scheduled in a few days, I'd just wait patiently for it, i know its hard to wait but there really is nothing anybody can do at this early point.. good luck!!!!
AFM (as for me)- my first first mc was at 5 weeks, so Im thrilled i made it past that point, but my second one was at 8 weeks, so theres not much I can do other than wait for my 8 week scan. If i make it to 8 weeks uneventfully and have a good scan with a HB, then thats the furthest Ive ever made it before and Id be THRILLED! I've never had a HB yet, so fingers toes eyes crossed lol... Ive got 2 weeks to go, Im so glad Thanksgiving will be a distraction for me as Im having about a dozen people over.. just praying nothing happens to have to cause me to cancel.... perish the thought