Hi Bek

I believe it is possible to get a +ve OPK and then ovulate 24-72 hours later, also you can get a +ve opk and not ovulate at all. I got a positive on CD23 but didn't actually have a sustained thermal shift until CD35.

Are you using the OPK at the same time every day? and make sure you don't use first morning urine as it can pick up the previous days hormone.

All you can do is continue bding until such time as your temp indicates a thermal shift.

GL