Ok I have confused myself and hoping someone can help. Using the pregnancy calculator going by lmp, I haven't even really conceived yet. My last lmp was 15/9. I o'd a week earlier than normal (26/9, 1 week after af). Going by my normal cycle I am not due for af for another 8 or so days. But the fact o'd a week early means i am already 13 dpo. And got a pretty strong positive (12 dpo).
Do I keep going by my lmp even though I o'd a week early, or doesn't it make a difference? If I o'd at normal time I probably wouldn't even get a bfp yet.
Normally I would just go by lmp but the darkness of test and the fact i definitely o'd a week early has thrown me a little.