FF is suggesting I wait 16-18 DPO to test. Wow...that seems like such a long time!

Since I just started charting last month, and didn't have a very long luteal phase, it suggests waiting that long. So, that would be around the 18th or so...that is at least unless AF shows before then. I remember testing with DD, I tested the VERY earliest possible, like 3 days before I expected AF, and got a DARK positive. This last time, I waited till AF was a day or two late, but I really just didn't think I'd get pregnant that fast, so it's not like I was itching to test that time. But this time? Wow...it's gonna seem like forever!
It was funny, DH said last night "Well, we definitely had a lot of opporutunities to get you pregnant!" I was like "Yeah, but if we missed the window, you never know!" I'm just so frustrated that things didn't line up the way I thought they would with the negative OPK's and all. Hmm....we'll see!!!!