You should follow CDC guidelines with regard to self-isolation if you have recently traveled out of the country, been exposed to a Person Under Investigation (PUI) for COVID-19 or someone diagnosed with COVID-19, or if you are experiencing any symptoms of fever, cough, or shortness of breath.

This link can help you do a specific assessment based on your recent travel, exposure to others and symptoms.
https://www.cdc.gov/coronavirus/2019-ncov/php/risk-assessment.html