:
Premenopausal: 5 to 30 IU/L
Midcycle peak: 10 to 60 IU/L
Pregnancy: low to undetectable
Postmenopausal: Greater than 30 IU/L
Note: IU/L = international units per liter.
I am 27.
I did not do it on the 3rd day of cycle.
Since I didnt get my periods for 2 month the doc asked me to get a blood work.
I got my periods the day I went for the blood tests.
Doctor has asked me to repeat FSH.
I hope its not disastrous.
This site has some expected levels for day 3 FSH http://www.advancedfertility.com/day3fsh.htm.
Basically, under 10 is OK, 10 - 12 is fair, 12- 15 reduced ovarian reserve, 15 - 20 not too good, over 20 poor. The level of measure is mIU/mL. FYI, I am 40 years old and my FSH is 14 and I've gotten pregnant 3x recently (unfortuantely miscarried). So even a moderately high level does not mean you can't conceive, its just harder and more of your eggs are low quality.
FSH is tested along with estrogen on day 3 (or day 2), sounds like you may have done day 1 (or 28? if it was the last cycle day). If in fact it is as high as 50 when you re-test, that is a problem as it could indicate premature ovarian failure. I hope that is not the case (I really don't want to worry you), but if so, please talk to your doctor.