Find fertile days & ovulation
Premom Ovulation Calculator helps users estimate an ovulation day, fertile window, next period, and when to begin LH ovulation test strips from the first day of the last period and average cycle length. It opens an interactive educational calculator in ChatGPT and supports English, German, and Simplified Chinese. The app does not connect to a Premom account, sell products, or direct users to an external website. Results are cycle-based educational estimates and are not a substitute for professional medical advice.
When connected to Premom Ovulation Calculator, ChatGPT may share relevant chats and memories with this app to help provide context for your requests. Premom Ovulation Calculator’s use of this data is subject to their terms and privacy policy. If you have Memory enabled, data from the app may be used to proactively provide helpful information or suggestions. ChatGPT always respects your training data preferences, including for data from connected apps. Use of apps may come with elevated risk. You can manage your preferences or disconnect from apps anytime in your settings. Learn more