+opk yesterday and today..

[mummy to 2]

If we bd again tonight am I still in with a chance?

 

[babyzoe]

Yes, the OPKS turn positive 12 hours or more before you actually ovulate.

 

[sallyhansen76]

A surge can last from a couple of hours to 3 days. But u usually ovulate between 12 and 36 hours after a positive opk. So tonight would be perfect timing. And just to be sure keep bd ing until you get a neg opk!