I've been browsing for a while but haven't yet posted BUT now I've hit panic stations so need some thoughts

I have been off the pill since January - whilst I know it takes many ppl a long time to conceive, it's always the same story "it won't be like that for me". Well it is taking longer than hoped.

Anyway, I had to go to the doc the other week for a tetanus booster & whilst I was there, spoke with her about the frustrations. She took some blood, tested all my hormones & vitamins etc and they all came back within normal range. I was also given a blood test last week to test insulin, glucose & progesterone on CD22 (I have a 31 day cycle which comes and goes like clockwork with LH surge on day 17). SO, glucose & insulin were normal but my progesterone was lower than expected. I have googled it and I have none of the symptoms or usual imbalances that go hand in hand (usually oestrogen is too high if pg is low??) Doc didn't sound overly worried, said that with me not being a 28 day cycle as they usually work off it's a bit hit and miss and has given me a referral to test on CD21 next mth...

Has anyone experienced a low pg result but had all other hormones etc well within normal levels. I had a little depression session about the result on fri with the thought that there is something not right