Take the test :) Did you follow up on your HCG levels after your miscarriage? I know when I had one this summer it still read positive on preg tests for a while. It has been 6 weeks so you should of dropped all the way. If you get a positive test then call your doc and get your levels checked to see if they are rising. Good luck, I hope all goes perfectly!!
The only thing you can do is take a test. We can't tell you yes or no if you are pregnant, and the sooner you find out, the better.