This article is about how well a child is able to survive if the mother is present. Prenatal care of the mother towards the baby is not the only thing that affects the child’s survival, they also need postnatal care in order to survive. Therefore, the chance of the child surviving also depends on the survival of the mother. Females invest a lot of time (eighteen years) and energy into raising their young and providing education, protection, and affection. This article compares a child’s life when the mother is present and if the mother dies and how much it effects her offspring. Children bet on the survival of their mother to get the most care and a mother implicitly bets on surviving to take care of her child. This codependent lifestyle is a phenomenon that is referred to as “the bet on mother's survival.” The first part of this article gives an estimate of the probability for children to survive until maturity if their mother dies at any time in their childhood years. The population used for this estimate was ancient Quebec which comprises the French Canadians in 1608. The lower the age of the child at the time of the mothers death, have a less likely chance of surviving if they have a lower level of allocare. In ancient Quebec, the mean daughters' survival until maturity equaled 0.69. The chances of surviving in a population with a greater number of allocare, increases the child’s chance of survival due to being taken care of by another human. The second part of this article presents a model that incorporates these estimates at the level of female's reproductive history. The model used is called the bet on mother's survival model (BOMS model). This model is extended to sub populations of females surviving at a given age which lets us calculate the number of children make it to a level of maturity that a female gains by caring for them up to this age. To analyze the demographic impact of the difference of age of the moth