I am 4+6 - I have been to my GP surgery to see the nurse a few times for something not pregnancy-related and was prescribed medicine. I recently learnt that prescriptions are free with a maternity exemption certificate. Do I have to wait till the booking appointment to ask for one of these, or can I get one earlier? I'm not expecting to go back to the surgery before the booking appointment, but it would be helpful to have one sooner because of repeat prescriptions and dental checkup due.