I got my first BFP at 11dpo... but honestly, I didn't believe it was true as it was SO SO Faint and wouldn't even show on a picture.... if I'd tested the day before I'm certain I would have thought it was a BFN! I didn't really believe it was true till 13dpo when I confirmed with another brand of test. It def makes a difference.
I would give it another day or two and try again. Maybe find out how much MIU your tests pick up... as the less the better. At 13dpo I tested with First Response EPT (the 6 days earlier kind) and there were two strong lines-- but my other cheapie dip tests were still very very faint pos+.
Best of luck hun! Your certainly NOT out yet