OvuSense was developed to provide the same benefit as OPK tests by predicting the onset of ovulation up to one day in advance in real time in each cycle. However, OPKs have been widely documented to produce false negative results ranging from 9% Lloyd R et al. (1989), to 20% Irons DW et al. (1994), to 35% Arici A et al. (1992). However, they can also produce false positive results = 7.7% according to McGovern PG et al. (2004), meaning couples attempt to conceive at the wrong point in the month. Elevated levels of Luteinising Hormone (which OPKs measure) - have been reported generally in patients with Polycystic Ovarian Syndrome - Robinson et al. (1992), and that is why many women with PCOS report difficulty in using OPKs.

Unlike OPKs, OvuSense provides a clinically accurate detection of the exact date of ovulation day for all women regardless of whether they have ovulatory issues. OvuSense can also help you to diagnose ovulatory conditions by showing you an extremely accurate picture of your progesterone levels throughout the cycle.