I know a lot of people got all excited over TMPOB after that study was published stating that prenatal gender tests from the mother's blood are 95% accurate after 7 weeks, but if you actually read the study, the method used was NOT a few drops of blood on a card. The testing used involved several vials of maternal blood drawn in a sterile lab. There's lots of room for error in the TMPOB home test kit method. Hell, if a male is in the room that can throw off the results. There are only a few labs in the US that do the real testing, and I know at least one of them requires you to have your doctor order the test and tell you the results. Don't worry about TMPOB. It's not necessarily true. Oh, and that same study stated that the prenatal gender urine tests were "worse than a coin flip" for accuracy.
Crunchy mama two DS and married 6 years to my wonderful DH. I'm NEVER having another boy!