Ok ladies I need help Another +OPK

So I started using ovulation test and preseed this month an I was positive I had my LH surge on the 6th the test line popped up before the control line and was just as dark I swear the next 4 test were still positive until the same time the following day followed by 2 negatives then when I took another just recently it was almost as dark as the control line again.. Does this mean I haven't ovulated yet? Hubby will be outta town the next couple of days does this mean I'm out? We have only missed one day in glows fertile window. Just curious. Any help is appreciated!! I just took another test today CD21 or 3dpo an it's another positive what is going on? Any help would be appreciated I haven't BD since CD 18 at like 2:30 in the morning. Please help.