She was raised in Acme, Pennsylvania and graduated from Connellsville Area High School. She is married to Matt Miller, a pharmacist, who is also a Connellsville graduate. Ashleigh received her undergraduate degree in Neuroscience from the Johns Hopkins University, in Baltimore, Maryland. She subsequently worked as a science educator, in Atlanta, Georgia prior to earning her Master of Science, Physician Assistant degree from Seton Hill University in 2012.