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Follicle-stimulating hormone (FSH)

Follicle-stimulating hormone (FSH) helps control a woman's menstrual cycle and egg production and also a man's sperm production. FSH is produced by the pituitary gland.

Women's FSH levels normally vary throughout the menstrual cycle and are highest just before release of an egg (ovulation). Men's FSH levels normally stay at a constant level. An abnormally high or low level of FSH is often a sign of an inability to produce eggs or sperm.

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Travel Warnings and Tips for Pregnant Women

If you decide to vacation, visit old friends, or must travel for work, pregnancy shouldn’t stop you from flying or