9DPO, tested too early? Sigh.....

Mary β€’ First baby {BOY} due Sept 15, 2015 πŸ’™πŸ’™πŸ’™ Over the moon with J O Y
So I made the mistake of testing today, only to get a BFN. I'm only 9DPO, is it possible to have a false negative this early? ? Fingers crossed, AF due 10/10 .....