Keep it simple. You can be upfront about your desire to track her moods.
Here are some of the benefits to her and the realtinonship as a whole:
Better communication.
Better Sex during Ovulation Phase.
Less Fights
More support to her during her period
more advanture and new experiences for her during the Follicular Phase.
More space for her during the Luteal phase.
But if you think she might be triggered by that when you ask or later on here are some ways she will share the data with you in conversation:
1. I read this article recently that said … Women are more creative than men during ovulation.. Do you think thats true? Do you know when you’re ovulating? Do you know when you’re last period was?
2. I read an article that says women are psychic/intuitive during their period, do you think thats true? Have you tested it? How many fingers am I holding behind my back?
If you want to show the actual article. Here it is:
Are Women Psychic During Their Period?