Dilly99 said:
sorry to butt in, Newbie
I am on clomid first cycle and my progesterone was 0.7 on cd21 and cons advised that above 20 would indicate that I have ov'd so seems a bit of a grey area. Had day 28 today so will see.
lou
bubkin said:
from what i understand the day 21 test should be taken 7 days before your period is due to catch the prog at its highest, so dilly if you are like me and ovulate late in your cycle taking that test on day 21 will make your reading low.
Hi there Dilly99 & bubkin
Just thought I'd let you know that the original post is from 2004 and the member has not posted on FF since the end of 2007.....so you may not get a response.
Most clinics look for a progesterone level of 30 nmol/l or over to indicate ovulation.....if it's mid 20's or above then this may indicate "borderline" ovulation which means that possibly blood test was done on wrong day (earlier or later than 7dpo) or that the egg released was maybe a little immature (they like follicle to be minimum of around 18mm before rupturing to ensure egg is mature for good fertilisation).
When comparing any hormone results you also need to be aware of the unit measurement used as otherwise it can take completely out of context....different labs use different measurements and ranges so 10 ng/ml is approx 30 nmol/l.
http://www.fertilityplus.org/faq/hormonelevels.html#female
Progesterone should ideally be tested at 7dpo (not 7 days before AF) as this is when it peaks.
Having tested on cd21 assumes ovulation on cd14, normally with 28 day cycle....if ovulate earlier or later in cycle then ideally try and get tested accordingly eg if ovulate on cd16 then get tested on cd23 etc.
It's also a "myth" that your luteal phase (from ovulation to AF) is always 14 days.....it can be anywhere between 10 - 17/18 days and still be classed as normal.
Progesterone levels vary so much month to month and woman to woman I personally think it's very hard to compare one womans result with anothers as we're all so different. Progesterone can only be used as an indication of ovulation....it can't be used to determine pregnancy.
Some women may have higher progesterone levels and not have conceived that month whilst another woman, who has much lower progesterone could be pg....this is why it really can't be used to indicate pregnancy
![:-\](https://www.fertilityfriends.co.uk/s3/fertilityfriends.co.uk/data/static/Smiley/undecided.gif "Undecided :-\")
If you have higher progesterone level then this can be an indication that more than one egg was released.
I ovulate naturally but was prescribed clomid several years ago to help regulate my cycles back as alternate months had started to go a bit erratic following 2 naturally conceived early miscarriages....I was also told it would help boost things ie release more eggs. I had follicle tracking scans and a few progesterone blood tests during the 6mths I was on it.....scans indicated 2 or 3 dominant follies each month and the progesterone results came back at 103 and 105 nmol/l which consultant said meant I'd released 2 or 3 eggs (as shown by the dominant follies). Even during natural cycles, with no drugs, my progesterone levels have been between 61-81 nmol/l, the lowest I've ever had was 48 nmol/l which was first natural cycle after an IVF and showed I still ovulated ! I used to have regular 28 day cycles with ovulation cd14 but as I mentioned above, following the mc's, went a bit all over the place occasionally. During taking clomid and now 3 yrs after stopping it, my cycles have remained regular at 30/31 days but I still ovulate on cd14/15 so I have a long luteal phase but when progesterone tested 7dpo I have always have really good levels.
Good luck to both of you....
Natasha
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