When there are less follicles (and eggs) left, it takes more FSH to select a follicle. So, higher FSH levels can indicate there are less eggs left — information critical to making a plan
*Please see FAQ for device compatibility list
Reserve tracks FSH (follicle stimulating hormone) early in the cycle to understand ovarian reserve. You’ll test on cycle days 5, 7, and 9. If you’re not yet familiar with cycle days, no worries! Cycle day 5 is 5 days after the start of your period.
Yes. You must use Proov Reserve with the Proov Insight app to gain full-cycle hormone insights. Please note that Proov Reserve is only compatible with the following phone models:
We are working to add more models to this list. If you have a question about your phone model, please reach out to us at info@proovtest.com.
A woman is born with all her eggs and does not produce more over her lifetime. Your ovarian reserve refers to how many eggs your ovaries have remaining. Understanding your ovarian reserve can help you have more informed conversations with your doctor and get further assessment, if necessary.
FSH is your body’s signal that stimulates the ovaries to produce eggs, so levels typically increase a little early in your cycle. When your ovarian reserve is low, it takes a stronger FSH signal to stimulate your ovaries to produce eggs. This means that if you have a lower ovarian reserve, your body produces more FSH at the beginning of your cycle, and testing reveals higher levels of the hormone in your system.
A single FSH reading — whether it be high or low — is considered non-diagnostic, since studies show that FSH levels can fluctuate. This is why we recommend testing FSH levels 3 times during your cycle (days 5, 7, and 9) and retesting your levels for at least a few cycles to get the best idea of your levels over time.
Yes, please test FSH levels using first morning urine for the most accurate results. First morning urine should be collected first thing when you wake up after at least a 6 hour hold. Using anything other than first morning urine can cause inaccurate results.
An ideal FSH level when trying to conceive is below 10 mIU/ml. However, one single FSH test is not diagnostic, so we always recommend testing for multiple days (specifically cycle days 5, 7, and 9) to get an average of your levels.