Period Calendar & Ovulation is a simple and smart cycle calculator that helps you predict your next period, ovulation day and fertile window. No medical knowledge required — just enter your last period date and cycle length, and the app does the rest.

💗 Main Features
• Predict next period dates
• Predict ovulation day and fertile window
• Smart monthly calendar with clear visual markers
• Quick data input — easy and fast
• Private and secure, no sign-up required
• Works offline, anytime and anywhere

📅 Easy-to-Read Calendar
Your menstrual cycle is displayed directly on a clean monthly calendar, showing:
• Predicted period days
• Ovulation day
• Fertile window
Helping you understand your cycle at a glance.

🔔 Reminders (Optional)
Set gentle reminders so you never miss:
• Next period
• Ovulation
• Fertile days

🔒 Safe & Personal
All calculations are based on common cycle patterns. This is a lifestyle tool, not medical advice, and can be used by anyone for personal reference.

Perfect for women who want a clean, lightweight, and accurate period and ovulation tracker without complicated menus or accounts.