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Doctor insights on: What Is A Low Number On Day 21 Of Progesterone Test

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Is 8 a low number for the result of a day-21 progesterone test if i'm trying to conceive w/o success

Is 8 a low number for the result of a day-21 progesterone test if i'm trying to conceive w/o success

Progesterone varies: Progesterone levels bounce around throughout the day, depending on day of the cycle and pituitary stimulating hormones. While a Progesterone level of 8 is on the low side, it is usually enough to support a pregnancy, and might well have been higher if retested a few hours later. We don't find Progesterone levels to be very helpful in planning fertility treatment. ...Read more

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Dr. Seth Derman
1,161 doctors shared insights

Progesterone (Definition)

Progesterone has been found to be helpful in preventing preterm birth in a patient who has a history of delivering babies too early. It can be given as vaginal suppositories. It is most often given as weekly ...Read more


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Chances of being pregnant on chlomid 50mg ? on cycle day 21 I had progesterone level of 7.5Took pregnancy test today neg.Is 7.5 to low?

Chances of being pregnant on chlomid 50mg ? on cycle day 21 I had progesterone level of 7.5Took pregnancy test today neg.Is 7.5 to low?

Want P4 higher: While it's true that the ideal peak progesterone (P4) level is 12 or above, it's still possible to get pregnant on a cycle with a P4 level of 7.5. Your doctor should consider increasing your dose to 100mg next time. The fact that your home pregnancy test is negative pretty much confirms that you are not pregnant. ...Read more

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Take 200 mg daily prometrium took blood test cycle day 21 progesterone .9 estrogen 40 fsh 7.2 lh 3.9 progesterone still low?

Take 200 mg daily prometrium took blood test cycle day 21 progesterone .9 estrogen 40 fsh 7.2 lh 3.9 progesterone still low?

FSH: age 50: 200 mg. of prometrium will not raise your progesterone levels above what is noted. An FSH of 7.2 is not menopausal, and indicates that you are producing significant levels of estrogen, just not ovulating, which makes the progesterone level only produced by the prometrium. This is normal for age 50, and your ovaries are still active and productive of estrogen. ...Read more

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My Progesterone level was 1.2, this was checked in the morning 3 days post ovulation. Day prior to ovulation ultrasound showed a 16mm follicle which was 4 days prior to test. I'm concerned its low, is this too low to conceive? Did I ovulate?

My Progesterone level was 1.2, this was checked in the morning 3 days post ovulation. Day prior to ovulation ultrasound showed a 16mm follicle which was 4 days prior to test. I'm concerned its low, is this too low to 
conceive? Did I ovulate?

Ovulation testing: Ovulation testing should be done in the midluteal phase typically 7 days after ovulation. Testing 3 days after is a bit odd and makes it very hard to interpret the result. I would see an Obgyn and schedule official ovulation testing. These tests must be done in a particular way to get interpretable results ...Read more

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Found out Ive low estrogen, but Ive been using progesterone cream. Helpful? Not helpful? No difference? Also what is normal range for progest/test?

Low estrogen ?: Estrogen production from ovaries can continue well beyond the cessation of menstrual periods. A serum test for "FSH" can determine if a woman is menopausal. Progesteron by itself will not alleviate the effects of low estrogen, however. See your healthcare professional for lab tests and advice, since more information is required to answer your question completely. ...Read more