Here's a pic of my opks through out this cycle. I have about a 36-38 day cycle and usually ovulate (at least I hope I'm ovulating) around CD22-27. Could you please take a look and tell me what you think? Most were taken with smu and this is my first cycle using opks and this brand throughout most of my cycle. A few days ago I had pretty strong lines for three days and on the second day I had one that looked positive. The picture doesn't really show it that well and they have lightened up since they've dried. Do you think I ovulated?? https://i1162.photobucket.com/albums/q531/lml8733/opks_zps83e55f4a.jpg
From the three you have marked in the picture, the middle one looks positive, so I'd say you ovulated 24-36 hours after that test x
Middle! And you can actually ovulate earlier than 24 hours. I always do. I got a positive OPK at 5pm and at 2am I got a sharp cramp and the next day (and today) my OPKs were light as you know what!