Remind me about day 21 progesterone tests

[OneSliceOfSwissCheese]

We've decided to TTC DC number 2. I have PCOS and we were trying for more than 2 years before we conceived DD on the 8th cycle of clomid. Since stopping breastfeeding my periods have regulated but I would like to check I'm actually ovulating.

Rather than ask for a re-referral to the fertility clinic just yet, I was thinking of booking in for a progesterone blood test to find out. I used to have these every month when I was on clomid but have forgotten the levels. Can anyone remind me what number I am looking for to indicate ovulation?

TIA

I've heard several different numbers so I think it can depend on the measurements they are using.

The units my clinic use (no idea what!) mean that anything in double figures is indicative of ovulation. My last test showed a level of 68.

My dr said 30+ indicated ov. My test was exactly 30!

Thanks :)