A member asked:

If i am on cycle day 3 & having my estrogen checked today. what time of day would my estrogen level be at its lowest?

A doctor has provided 1 answer

No diurnal variation: In general, the estrogen and progresterone hormones do not show a signifciant diurnal variation. Fsh and lh (from the pituitary) are involved in cycling, and they have specific periodicities in which they are higher and lower. This is not like cortisol which is lowest at 6-8 am.

Answered 6/22/2014

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Thank

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