20 1 1 male and female born in the old age

You can do the math. I did it when I was pregnant. I counted a girl and it turned out to be a girl. I think it's quite accurate. You can do the math. I forgot when I was pregnant. I counted the boys and it turned out to be boys. Calculation formula of boys and girls, prediction table of boys and girls, chart of boys and girls in Qing Dynasty. Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Prediction of boys and girls in Qing Dynasty Forecasting table of boys and girls in Qing dynasty forecasting table of boys and girls in Qing dynasty forecasting table of boys and girls in Qing dynasty forecasting table of boys and girls in Qing dynasty forecasting table of boys and girls in Qing dynasty forecasting table of boys and girls in Qing dynasty forecasting table of boys and girls in Qing dynasty.