Detailed picture of how to use the pregnancy test stick The pregnancy test stick is a commonly used self-test tool that can be used to determine whether a woman is pregnant. It is simple to operate and has high accuracy. It is a testing tool commonly used by many women. This article will introduce in detail how to use the pregnancy test stick from four aspects. 1. Preparation before taking a pregnancy test Before taking a pregnancy test, you should make the following preparations: Choose a reliable pregnancy test stick. There are many brands of pregnancy test sticks on the market. When choosing, you should choose products from big brands to ensure accuracy. In addition, you should choose a pregnancy test stick with a long service life to avoid storage time.