OPK's.

I got a peak ovulation test on tues, bd t, and Wednesday (as well as sat) well last night (fri) I took another for fun and the lines showed a strong positive even though the reading was low fertility (found out after you get peak you always get neg your next test) tested again today and it said peak again, so we just Bd'd again, I think according to lines my strongest day was fri and we did not bd. Is there still a chance this month?