How many DPO can you do a pregnancy test?

[Thomasina76]

Is 9 DPO too soon? Just got a BFN, wondering if it can change to a positive.

I read somewhere the average dpo to get a positive is 14.
Some people get BFP at 8dpo, others not until 20!
Depends on each individual. When is AFdue? You're not out until she arrives.
It's hard not to test everyday but try to wait if AF doesn't arrive until 12 or 14dpo.