Ab spotting is really common, I had it although my pregnancy with DD and each time I was scanned and all was fine.
I hope it all stops and the scan brings good news.
Rose I'm sorry 100mg didn't work for you, and really hope 150mg does the job. Just remember pregnancy is possible even if the clomid doesn't work, I have walking talking proof of that. Doesn't make it any easier but fingers crossed for next month.
cobble is this your first month with OPKs? Remember they aren't reliable for people with PCOS or you may be ovulating earlier or later than you expect. I test from cd10 onwards.
Hi doll and welcome
PCOS is not the end of the world and you will have a baby, theres plenty of options available to you. We are becoming pros over here so ask any questions you may have.
Thanks for the good wishes shell, I'm hoping this will be our month. Last month ruined me so we need some good news now.
Not an awful lot to report from me at the moment. I'm on cd12 and OPK is slightly darker than yesterday but nowhere near where it needs to be. Although this was the same last month with a sudden peak on cd15 so everything is still crossed. My parting words with DP this morning were 'we need to start on the no pants dance tonight' 
I am definatley a bit more focused on ttc now than I was a few days ago but I suppose that's because I know I should be due a peak soon, oddly I'm due to ovulate on Friday which is when I'm meant to be seeing the consultant for a 6 month review. Although it isn't strictly a 6 month review as I have only had 3 cycles but that was our choice to have a break march and April.
Just a TMI note for anyone who is cm checking, I don't get any at all and never have so just because you have no cm it doesn't mean you aren't ovulating.