I ordered CB ov tests a few weeks ago and they have just arrived. I don't think I'm close to ov yet but obviously want to use them immediately! Now I have to wait 4 hours before I can urinate/poas. I read that after I went to the loo half an hour ago! Of course, now I am bursting and have to wait AGES. Grr... What time of day do you normally use OPKs?