Even if we can't nail it down to a precise day / year / decade / millenium, there is absolutely ZERO evidence for concluding that the earth and universe are less than several billion years old. (religion.blogs.cnn.com)
Unfortunately, a specified due date has made women (and their family and friends) place too much emphasis on a precise day - to the point that they plan their life around it. (lamaze.org)
You can not be certain when your baby will go through a growth spurt because even medical experts can not tell you the precise day. (momdiscuss.com)