You do not have to have X-rays before your first consultation. However, if you are keen to start orthodontic treatment, it is a good idea to have the two basic X-rays – a panoramic X-ray and a cephalometric X-ray. They provide additional information that cannot be obtained any other way, such as whether there are unerupted wisdom teeth and where they are positioned.
Some clinics can take X-rays on site, so it is worth asking about this when you book your appointment.
This answer is for general information. Your own case needs an examination by an orthodontist.