CD1-6: 9/2-9/7 (AF)

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I have been having AF like cramps since CD11 so I feel I must have ovulated but I'm still cramping and bloated?...Please take a look at my OPKs and tell me what you think. Did I ovulate CD11 and would be about 7-8dpo TODAY?... Or did I ovulate CD16. I know CD11 looks faint because the test is older but it was positive the day I took it. I have heard that OPKS tend to stay positive if you conceive. If I ovulated that early in my cycle could my continuous positive OPKs be a sign of BFP? I'm a bit confused, it can be difficult to get the hang of these things.