Haha, this is funny!
With my 4 children, it works for 3 of them, but doesn't work for the third girl - funnily enough, she was the one who I was unsure of while I was pregnant!
This time I am not sure whether I conceived right at the end of October or the very first days of November....it's right there on the cusp, could be Halloween, could be the day after! It's about a 4 day guess, one says boy, one says girl and this time I have NO IDEA!!! With the three that were right from this test, I knew the whole pregnancy even before confirming it. I just knew. The one that was wrong I was unsure about, and this one I am unsure!
Could be something to this...then again, it's always a 50/50 chance, hehe!