Period Tracker

Period Calculator
  • Cycle 1: Thu Jan 29 2026 – Mon Feb 02 2026 (ovulation ~Thu Feb 12 2026)
  • Cycle 2: Thu Feb 26 2026 – Mon Mar 02 2026 (ovulation ~Thu Mar 12 2026)
  • Cycle 3: Thu Mar 26 2026 – Mon Mar 30 2026 (ovulation ~Thu Apr 09 2026)
How this is calculated

Projects your next cycles by repeatedly adding your average cycle length to your last period start date. Regularity assumptions apply — actual cycles vary.