A cheetah pregnancy lasts about 90 days. Before she is ready to deliver, the expectant mother will scout out multiple safe dens for future use. She will settle in a den and give birth to as many as 6 cubs, although 3 or 4 is most common. The first 3 months of the little cubs lives is a dangerous time because she must leave them alone while she hunts. Raising a family on her own, the mother cheetah is tireless, fearless and cunning.