Your phase calculator
What phase are you in today?
Enter the first day of your last period. In 2 seconds you'll know what your body needs this week.
You're in your phase
▲ today
Your body this week
Reach for
📖 Now head back to your guide — open this phase's chapter and follow its recipes.
Every cycle is unique. This calculator uses average phase lengths as a general guide — not medical advice. Your timing may vary.