Index Share

Ovulation Prediction Kits (OPKs)


How do Ovulation Prediction Kits (OPKs) work?

Ovulation Prediction Kits have become quite popular and can be quite useful to help you find your fertile time. Recently "Advanced OPKs" were also made available.

Standard OPK

OPKs work by measuring the presence of Luteinizing Hormone (LH) in your urine. A surge of LH which is sent to your ovary causes your ovary to produce enzymes which in turn causes the dominant follicle to rupture and release the egg into the Fallopian tube. This is ovulation and it is expected to occur within 24 hours of the surge of LH. An OPK is thus expected to be positive the day before you ovulate.

Following a few guidelines can help you get the most out of your OPK:

Advanced OPK

Advanced OPKs measure your estrogen level and LH levels. An advanced OPK displays a Low, High (flashing smiley) and Peak (solid smiley) fertility status based on your hormone levels. Enter this result in the corresponding data entry field (Monitor/Advanced OPK) on Fertility Friend (under Tests).

Index Share

Start Charting Here!
FREE Web and Mobile Apps
Get it on Apple App Store Get it on Google Play


© Tamtris Web Services Inc. Follow @fertilityfriend
Terms Of Service || Privacy Policy || Contact || Site Map