Thank you! That's exactly what I'm hoping for. I want this to be something that both of us can control as a couple. We make other, far less important decisions together ALL the time. I also want to get him to understand how my body what and what it is doing on certain days. This is ultimately my goal and if charting can give me that AND control of when I have children, I'm all for it! I'm glad you ladies have shared your experiences with me. I am curious to know though, has anyone had negative experiences with this?
I made it! Tailbone length stretched, WL curly

Teri Laflesh's book "Curly Like Me" sits on my desk and everytime I get frustrated and an impulse tells me to shave my head, I look at it in hopes that one day my hair will graze the top of my butt.