I swear i'm pregnant and i've only had one positive. We just got our insurance papers today so soon I will see a docter. Anyways, i've taken more test than I can count and out of all of them only one was positive. However, my stomach has grown a little this week. I don't know exactly how far along I am, but I think only 9 weeks. However, I got symptoms really early. My stomach and boobs have both grown. In fact someone told me that i'm already looking pregnant and I haven't had more than one positive test result. This might sound stupid, but when I jump around with my kindergartners my stomach feels a lot heavier. It's not comfortable at all to do any kind of jumping or anything. I could be 12 weeks if I go by symptoms, but I doubt it. Anyways so to answer your question I think false negatives are way more commen than false positives. I'll find out for sure pretty soon so I let you know.