Ancient Chinese gender prediction chart!

So, apparently this chart is an ancient Chinese method of predicting your baby's gender... It was discovered in an ancient royal tomb near Beijing (so the story goes!) and is said to be over 90% accurate.

To use it - match the age you were when the baby was conceived (down the left) with the month of conception (across the top). Voila!

Is it scientific? No. Interesting? Mais oui!! Somehow I doubt that every woman of my age (30) who conceived in July/Aug (right on the cusp) will have a boy. Seems about as likely as all Piceans (both our signs) having the same day today. I'll make sure not to go buying blue booties just yet!