In one embodiment of the disclosure, a method of monitoring a fetus in utero is disclosed that includes implanting a medical device into a patient's uterus, collecting fetal data using the medical device, and transmitting, e.g., wirelessly, the fetal data from the medical device to a receiver. In another embodiment, a medical monitoring system is disclosed that includes a first device that is implantable into a patient's uterus for collecting fetal data, and a second device that is configured and dimensioned for connection with the first device such that the fetal data is wirelessly communicable from the first device to the second device.