Proov is a brand that offers a range of at-home fertility tests and a companion app to help users understand their menstrual cycle and fertility. The core of Proov's offering is the Proov Confirm PdG test, which measures pregnanediol glucuronide (PdG), a progesterone metabolite in urine, to confirm successful ovulation. Proov also provides tests to assess ovarian reserve (FSH), predict ovulation (LH), and detect early pregnancy (hCG). .