Unless you are using fertility treatments, there is really no way to get a false positive. What you saw was most likely some implantation bleeding, which is a small amount of blood that is dislodged as the egg is implanted. the amount of implantation bleeding you have depends on you, it's different for each woman and can even be different for each pregnancy. (I only remember it happening with my first pregnancy, and maybe my second.)as far as the wait for your appointment, that's normal. Most doctors don't want to see patients until they are at least 8 weeks old. Some wait even longer. Yes, it does seem like a long time to wait, but until at least 10 weeks (at the earliest) you can't even hear the baby's heartbeat and if you're young, you won't get an early ultrasound. To be honest, there isn't a lot going on and there really isn't anything your doctor can do or tell you until closer to the second trimester. You can do some genetic testing between 11 and 13 weeks, but that's it. So don't worry about having to wait. I know it can drive you crazy, I've been before a few times before, but that's just how it is. I had to wait until I was 13 weeks before I got to see the nurse in my midwife's office, and the it was another two before I got a dating ultrasound and actually saw my midwife.