I typically don't test until the day I've missed AF. Anytime I've tested before that, I've gotten BFNs which totally bummed me out, then AF showed up and bummed me out more. If I wait until AF doesn't show, then I have a pretty good chance of having a BFP and thus totally not being bummed. And if AF does show, I'm only bummed once, at least.
I voted 12dpo but that was for my first pregnancy. This time it wasn't until 14dop. I am very sure of when I ovulated (it's painful for me), I used the super sensitive tests and I got a negative both times the day before the positive.
I chose other, not sure how many DPO I was, but it was probably more like 19 or 20. I have long cycles though (like 34 days instead of 28?) and I was not TTC so I didn't test till I realized I was late!
I got mine at 9DPO using internet cheapies. The test I took with FMU was one of those horrible "...maybe?" tests that we all seem to imagine right around that time. I took another with SMU about 3 hours later (after a bowl of cereal and glass of water) and it was definitely positive. I was absolutely shocked that there was such a difference when EVERYONE tells you that FMU is "best"
18 DPO.... my period was 4 days late. I was very skeptical b/c I had been trying for so long, and I hadn't taken a test for a few months. The only reason I bothered testing was b/c I had a *slight* feeling that things might have actually worked out that cycle. I didn't bother testing before that b/c part of me didn't believe it could be real.
I did IVF so I immediately started POAS to see the HCG trigger shot leave my system (so you get positive HPT until it fads to nothing then start looking for the line to come back). I *noticed* a faint line on 10dpo but in hindsight my 9dpo also had a faint line. I answered 10. I also counted egg retrieval as o.
With DS, I didn't test until AF was at least 3 days late. The start of my periods had always been off by one or two days, so I wanted to wait until it was a little later than normal, then I tested. Probably could've test sooner because it showed up as a BRIGHT pink positive!!
Now, I'm wondering when I should test this month as I have a pretty good idea of when I O'd, but not 100%. AF doesn't start until next Friday.....UGH!!