I think I've been doing this all wrong.

Nicol

My period is like clock work. But I get it in the evening or night. I usually count that whole day as my first day. Should I count the next bay as my first day?

And DPO... do I start counting from my first day of ovulation or my last?

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