From ClearPlan Easy Fertility Monitor website:
"Are you currently trying to conceive, or using home ovulation or home pregnancy tests? If so, maybe you would be interested in being part of a consumer study using either home ovulation or home pregnancy tests? To take part you need to be between the ages of 18-40 and willing to perform these simple tests at home. If you are eligible to participate, you will receive study supplies at no charge and a small stipend for your time and effort.
"If you are interested, please enter your contact information below. We will then mail you an information packet about the studies we are currently recruiting for."
http://64.21.72.195/clearplan/study/