Yes, it is possible for a male over 50 with type 2 diabetes to father a child. However, there are certain factors that may affect fertility and the chances of getting a girl pregnant. Age can decrease sperm quality and quantity, while diabetes can also impact fertility by affecting sperm health and erectile function. It is recommended for men in this situation to consult with their healthcare provider or fertility specialist to assess their individual circumstances and explore potential options such as assisted reproductive techniques.