I'm on my third round of clomid. I'm assuming it's working because I got my period a almost exactly two weeks after I finished my last pill each round. I did opks twice a day and never got a positive one. I'm just wondering if it's normal not to respond to the opks and if anyone else has experienced this? My husband is a truck driver and we work opposite schedules so it's hard to find time to bd. I don't think the first two rounds worked because I was waiting for the opks to tell me when I ovulated. Is there any other way you ladies track ovulation?