Thanks everyone for your helpful responses.

I am currently on a cycle watch and am Day 14, so far have had 3 lots of BTand the one ultra sound which involved an internal scan - this is how my FS determined I had PCO. I was told the rest of my BT's up until have been within normal ranges. Apart from the fact that I'm not close to O yet, but anywehre from day 18-24 is normal for me so not too concerned by that. My FS did mention we would have to wait and see if I O this cycle before determining anything any further.