Sneak peak gender test

Hey guys, so I keep getting a sponsored ad for the sneak peak test where you send out your blood and you can find out the sex of your baby early, has it worked for anyone? My niece did it last year and it was correct for a girl but I’ve seen varying reviews. My doctors office won’t do an actual blood test unless they think there may be something wrong with the baby, and given the timing of my due date I’d really like to start putting things away here and there..

lmk if the test is worth buying :)