When is the best time to take OPKs? I've read that taking them in the morning is not the best and taking them anywhere between 11pm to 8pm is best. This is our 3rd month trying and first month using OPKs. I want to take them twice a day to make sure I don't miss my LH surge, however, I read if you take them twice a day they should be taken 10 hours apart. Just wondering what everyone else does and what has worked for them? Really hoping this is our month!