When estrogen's at her peak, testosterone's at its peak. You're getting testosterone every 15 minutes on a, on a 24 hour cycle. It's being pulsed into your bodies. We get it in one blurb of a month. So then around day 10 to day 15 is when we ovulate. And what's really interesting about that phase is that we have all of our hormones coming in. Now you have lower levels throughout a woman has lower levels but they're not high.