A pregnant employee who is medically advised to attend ante-natal care is entitled to paid time off work in order to attend an appointment.
If an employer asks, the employee must provide a certificate confirming the pregnancy and written confirmation of the appointment. If this information is not provided the employee will not be entitled to time off unless it is her first ante-natal appointment.
Agency workers are also entitled to time off by both the agency and any person they are working for.
As for employees a confirmation of pregnancy and appointment can be required by an agency or hirer.