🩷 Period Tracker Calculator

Track your next period, ovulation, and fertile window with ease.

🌸 Your Menstrual Insights

Next Period:
Fertile Window:
Ovulation Day:
Pregnancy Test Day:
Estimated Due Date (if pregnant):

What is a Period Tracker?

A period tracker helps you know when your next period will start. It also shows your ovulation day and fertile window, helping you plan or prevent pregnancy.

How Does It Work?

  • Last Period: The first day of your last period.
  • Cycle Length: The number of days between periods (usually 28).
  • Period Length: The number of days your period lasts.

Based on these, the tool calculates your next period date, fertile days, ovulation day, and possible pregnancy test day.

Why Use a Period Tracker?

  • Know when your period is coming.
  • Track ovulation if you're trying to conceive.
  • Understand your cycle better.
  • Plan events around your period.

Quick Facts

  • A regular cycle is usually 21–35 days.
  • Ovulation often happens 14 days before your next period.
  • The fertile window is about 6 days long.
  • Missing periods? See a doctor if you're unsure.

Note

This tracker gives an estimate. Your actual cycle may vary slightly. For medical concerns, always talk to your doctor.