Sarah76, I am so sorry to hear what has happened to you. I thought you might want to hear my story. As you know, I have PCOS too.
It took me 3 years to conceive DS, and I was pretty obsessive about charting etc. However, after lots of investigations and procedures I had something called ovarian drilling, which is basically what it sounds like!
Following that procedure I developed an infection and was forced to spend 3 weeks off sick from work. Having spent the month before the procedure actively avoiding pregnancy, it was a relief to flop on the sofa recovering from the op and the infection.
My endocrinologist upped my metformin dose to 850mg three times a day, and I'd lost about 10% of my weight prior to the procedure.
The following month I was pregnant. To this day, I have no idea whether it was the enforced rest from TTC, work, the ovarian drilling or the metformin but something worked!
DS is now 23 months old and I am pregnant again. In fact, although sadly I have also had 2 miscarriages this year, I appear to be ovulating regularly which I've been told sometimes happens after a woman with PCOS gets pregnant.
So there is lots of hope. But don't underestimate the emotional and physical healing required after a miscarriage. Take the time to heal. By the way, my first miscarriage this year was in March, with another in May. My last period before this pregnancy was the end of July, so I've obviously ovulated fairly soon after each miscarriage, although it has been very early on in the pregnancy each time.
You'll get there. Clomid was a nightmare for me, it made me a bit crazy. Good luck, and I'll be thinking of you. If you want the name of the consultant I saw, let me know. She is bit of an expert in PCOS.