i was recently introduced to kindara: an online application to chart your cycle for birth control purposes or to increase your chance of becoming pregnant (without medical procedures and side effects). by charting the daily changes, one can determine which days of the month are the most/least fertile.
i had the pleasure of meeting kindara founders kati and will last week... they were awesome and enthusiastic... i just signed up and look forward to exploring my cycle... and watching their company grow. nice work guys!