Calendar out of sync with partner

My calendar and my partners calendar for dates such as period start and ovulation are usually off by 1 to 5 days. For instance, this month Their ovulation day and the one on my calendar was off by a day and Their next period start is 3 days different than the one on my calendar. What’s up with that?

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors