Description TWIP (Test for Women with Irregular Periods) is a biodegradable midstream pregnancy test for women with irregular periods. Twip delivers over 99% accuracy from the 17th day of intercourse. Reddot Award Winner 2015Special sensitivity of the test ensures Twip is appropriate for women with irregular periods. And the patented technology makes the user experience convenient and easy. Twip’s twist-and-turn concept puts extra emphasis on hygene. The components of Twip render the test biodegradable anywhere between 9 months and 5 years after use, creating a better environment for future generations.