The present invention provides a device and method for measuring the amount of milk supplied to a feeding infant. The device (10) comprises a cap (13) having a nipple-shaped region (10) with an inner surface (14) and an outer surface (16) and a duct (18) extending therebetween. The duct has an inlet (20) at the inner surface and an outlet (22) at the outer surface. The cap is adapted to be mounted on the nipple region of a woman's breast with the inner surface facing the woman's breast and to allow breast-milk to pass through the duct. The device further comprises a sensor (24) associated with the duct for measuring at least milk volume passing through the duct and providing data indicative of the volume. The sensor is embedded between the inner and outer surface of the cap
