How soon can wisdom teeth erupt or move? i had an x-ray in october where the tooth wasn't coming in but would be impacted 7 months later i'm having some pain that comes and goes and a bump behind my molar, there's an off pink-white color to it?

In the US wisdom teeth erupt between 17-21 years. In other countries [WEST AFRICA] I have seen third molars erupt at 15 -18 years of age when I do forensic age determination x-rays. If impacted and area swollen, best have them extracted to avoid future complications.

May be from erupting wisdom tooth, abscessed 12 year molar, or one of very many soft-tissue lesions. We cannot see you and examine you, and we do not have access to your medical/dental history. Not every questions can be answered with a computer click. A 10 minute computer search is no substitute for your Dentist's 600,000 minute Dental School education and years of practice.