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Simple science that empowers women 

Proov works by measuring a urine metabolite of progesterone, called Pregnanediol Glucuronide, or PdG.
PdG has been shown to directly correlate with the presence of progesterone in blood.


What do you want to Proov?

Proov tests were designed to allow women to monitor progesterone at home, in 5 minutes.

Ovulation Confirmation

Progesterone levels rise after ovulation occurs. Therefore, measuring progesterone is the only way to confirm ovulation has happened.

Trying to Conceive

Progesterone levels must be elevated at the time of implantation to achieve a successful pregnancy.

Period Prediction

Proov test allows women to understand progesterone levels and more accurately track ovulation, therefore making it easier to predict when menstruation is expected occur.

Did ovulation occur?

Through measuring PdG, Proov test strips help confirm whether or not ovulation has occurred. According to the Global Library of Women’s Medicine, PdG levels in urine typically rise 24-36 hours after ovulation. If conception does not occur, PdG levels will decrease and menstruation will occur. The graph to the left shows the most common pattern of progesterone in non-conception cycles. Other progesterone patterns do exist, so not all women will follow this pattern.

Progesterone Post Conception

Progesterone levels need to be elevated during implantation –
which typically occurs 7-10 days after ovulation – to conceive.*
Proov strips are configured to measure analytes of
progesterone in urine at a threshold of 5 ug/ml. This threshold
is considered to be the minimum level of PdG ** needed to
support conception and pregnancy. So while Proov strips were
designed to confirm ovulation, the strips are expected to
remain positive after conception occurs.

Become a Progesterone Pro

Did you know that progesterone patterns can vary? Here are five of the most common patterns.

What the hormone?!

Learn more about the 4 hormones involved in the menstrual cycle - what they are called, what they do and how an imbalance can sometimes contribute to infertility issues.





Proov was designed to help monitor ovulation to aid in conception. While progesterone remains high during pregnancy, Proov has not been clinically validated for use during pregnancy.
*Tolga B Mesen, MD and Steven L. Young, MD, PhD “Progesterone and the Luteal Phase: A Requisite to Reproduction” Published online January 2015
**R. Ecochard, R. Leiva, T. Bouchard, H. Boehringer, A. Direito, A. Mariani, R. Fehring “Use of urinary pregnanediol 3-glucoronide to confirm ovulation” October 2013