Today is CD15, and since the OPKs have started to darken, I was optimistic that an ultrasound today might show us a maturing follicle.
As is usual, though, the optimism thing didn't work out too well. I have a beautiful lining, 9.65mm, but my only real follicle is 13mm, so it definitely looks like we're up for another long cycle.
I'm going to keep OPK-ing to see when a surge might happen. We may do another ultrasound then, or we may just do a P4 on 7DPO to verify ovulation. After that, and assuming this cycle isn't the one, the Clomid discussion will resume.