The normal value of follicle stimulating hormone should be between 5 and 40 mIU/mL. Follicle stimulating hormone is not constant and can be affected by a variety of factors. The follicle phase, ovulation phase, and luteal phase are the most common times for a woman to have a blood test between the 2nd and 5th day of menstruation to ensure the correct results of the follicle stimulating hormone test. The blood test must be performed on an empty stomach to avoid incorrect results. It is important to stabilize your mood before the test, as this hormone may also be affected by your mood. If the follicle stimulating hormone does not reach a certain standard, it may affect a woman’s fertility.