MB Free Chinese Pregnancy Calendar is an advanced yet simple tool based on the principles of Chinese lunar calendar. The tool helps a would-be mother to determine the gender of her baby based on her date of birth and date of conception. It is a handy program that helps you to plan your pregnancy based on your preference to have a boy or a girl. This is for entertainment purpose only. MB Free Chinese Pregnancy Calendar is an informative program which tells you about the gender of a baby based on the time of conception and the mother’s birth day. This is a completely freeware and the best part lies in the fact that it can be administered within five to ten minutes. All you need to do is to input your date of birth and the date of conception.