I'm on clomid 200mg for cd 2-6. In the past, clomid has given me a perfect 28 day cycle. But this time (my first time using them) I got a positive OPK on cd 11, then a negative OPK on cd 12. Taking the positive test into consideration, I couldnt possibly ovulate On cd 14 could I? Which would make this cycle shorter than 28 days. Anyone else on clomid ever have a short cycle?