I'm not sure dpo. But my app is saying I'm one day late. I used opks this month and I o'd the 27th and 28th of July. Buuutttt that wasn't what was predicted my first o date was the 5th of aug. Then I got a super positive opk the 7th as well and when I put that in it messes the whole month up and it say it cant predict anything because nothing makes sense. I'm so frustrated. Please help. I need fresh eyes. Thank u ladies and baby dust for all!!!!!

^^^^this test was yesterday's...