My periods are irregular so I use several apps to narrow down my date for O. ( avg it out) FF said I might ovulate on the 11th, while Premom has the 13th. I use OPK but I didnt test while I was out of town at a convention (BD'd just in case anyways) when I returned home I had a positive but then it started to go down.

And then if I did O on the 11th then I would be 3dpo instead of 1dpo.

Im new to this so I feel so lost.