blood test results

Sheena,

   Here's the thing about testing FSH.  Like all hormone tests it just a snapshot in time.  Our FSH does fluctuate, as all hormones do.  Was this done on the first couple days of your cycle?  That would indicate how loudly your FSH has to scream to get the folliclures to pay attention to the message.  If however, this testing was done late in your cycle, and it was still running 16, then your brain may not be happy with the amount of estrogen you are producing.  Usually it's numbers over 20 that indicate menopause.   But look carefully at your lab results, there should be a chart provided  right after your results.  It will list normal FSH readings at differnet times of the cycle, as well as menopausal readings.  That should help you figure out what they consider normal range.  

But here's the thing that can drive us all crazy, remember hormones fluctuate.  If you are still having periods, then you could possible have a poor cycle (ie FSH calling loudly and estradiol relatively low)  and the next month, your body might respond better and over produce.  IT'S CRAZY what these flucuations can do.  That's the thing about peri,  it's all over the board.