Pregnant or Problems After Miscarriage?

I recently lost my baby at 6 weeks on April 12th,2010. My Husband And I had 2 weeks after that. I still haven't received AF and Ive taken two test both are BFP Im not sure if im pregnant of if it still showing up b/c of the loss. my are sore/bigger ive having cramps like i did in the pregnancy. stuffy nose and dry cough like crazy. i was just wondering if anyone has had this has happened to anyone and and went on to have a healthly baby