Abstract: It is important for a project manager to understand timing and scheduling and how to make planning tools work for their project and not the other way round. Time is unique and unlike other resources such as money and people lost time can never be replaced. The impact of a family planning program can be seen in the form of increased use of contraceptives, increased motivation to control births and increased preferences to have a smaller family. The main objective of this study was to determine the factors affecting implementation of Family Planning projects in Kenya. Specifically, the study sort to, assess the effect of technical capability on implementation of family planning projects in Kenya, examine the effect of project planning on implementation of family planning projects in Nairobi, Kenya, assess the effect of financial controls on implementation of family planning projects in Nairobi, Kenya, establish the effect of project communication on implementation of family planning projects in Nairobi, Kenya and determine the moderating effect of culture on the factors affecting implementation of family planning projects by non-governmental organizations in Nairobi, Kenya. The study was governed by three theories; project management theory, Lewin’s Change Management Theory, Logical Framework model and Network Theory.