Yep, my LP has always been about 12, with or without the Clomid. I've heard from several ladies that Clomid pushed their O date back & the first cycle I took it it pushed mine WAY back too. I usually O on CD 12 or 13 & the first cycle of Clomid I think I Oed on day 16 or 17. I was freaking out but learned that is normal for some ladies. I'm odd though I guess since that is the ONLY cycle Clomid did that to me.
It is supposed to make you O around day 14 & the 2nd & 3rd cycles of Clomid I did O around day 14.
GL & let us know how it goes!