Pregnancy Counter - 妊娠カウンター is a Chrome extension that calculates and displays the current week of pregnancy based on the expected due date. With this extension, users can easily keep track of their pregnancy progress.

Upon installation, users can set their expected due date, and the extension will constantly display the current week of pregnancy on the badge. By clicking on the icon, users can also see additional information such as the month of pregnancy and the countdown to the due date.

This extension is not only useful for pregnant individuals, but also for family members and friends who want to stay informed about the progress of a loved one's pregnancy.