mHealth applications are increasingly used to track, evaluate and store health data. Besides technological developments and acceptance of such mHealth services, a holistic understanding of the business model is required. A business model framework specific to the context of such mHealth services will support companies in developing holistic business models. In this research in progress, we present the development of a business model framework for mHealth services in the context of maternal and baby healthcare. The development of the framework is based on the design science research approach that supports the rigorous development of the framework. The initial business model framework as well as future steps are discussed. With the aid of the business model framework, companies will be able to design, evaluate and classify mHealth business models.