I am assuming you saw a specialist to get the clomid? What did they say when there was O but no BFP? What dose were you on? Have you tried vitex? it did regulate my cycles but no BFP for me.. Others have said it works? Also again I know it's obvious but has your DH had a semen analysis?

ETA: Sorry about 20questions lol, I just don't really know your story so trying to get as much info before I give my wonderful advice lol