Ladies...true 911 question, don't be mad....

Ashley
....at me for posting this picture. It is NOT a bfp as it may seem. This test had flashed the "book error" symbol a couple times while the test was processing, but I still got this. I know that I need to re test and my test is invalid. But does anyone have experience with this? Did you get a true bfp after or was it a false positive? I'm telling myself not to get too excited yet, is there a chance hcg was still detected or was it a complete technical difficulty? Thanks :(