How long does it take for a cancerous mole to spread? when i touch it and its red around the edge. do you think it's cancerous?

It takes time: Cancer often remains localized for a finite period of time. The whole process takes weeks to months to evolve. So there is ample time to get yourself checked and verify if it is anything that needs a biopsy or not. Many skin conditions are labeled as moles but they may not be melanoma precursors or moles, that can become a melanoma. You should go see a dermatologist when in doubt.