How much does the lutenizing hormone vary through the day? I know that it is emited in bursts. I have had four LH tests. In an approximate range of 2 to 9 my LH always came back around 2, recently however I had a result of 5. Is this a significant change? Or, were the first three measures in the troughs and the 5 at a peak?

Second, my shbg in a range of 13 to 70 is 16. How much does this change from week to week, month to month etc. Is it realitively stable?