HomeHacker News Show HN: A Full-Featured Period Tracker with Google Sheets https://ift.tt/2R3fftw byDZVOX -3/31/2020 07:08:00 PM 0 Show HN: A Full-Featured Period Tracker with Google Sheets https://ift.tt/2wJCaDg March 31, 2020 at 06:48PM Tags: Hacker News Facebook Twitter