Why???? Please help me understand

Why does everyone test before you miss your period?!?! No offense but its kinda a waste of money and a let down most of the time. At least if your period is late you know something is up. I understand the TWW can be awful and all, but it's more awful to be disappointed from getting a bfn to early!! Trust me ladies it's worth the wait!!!

And you could be saving the money from those tests you used WAYYYY to early ( I've seen people test at 4dpo) to use on tests once you miss a period. I know missing a period isn't always a for sure sign but at least you have a good reason to test.