According to the Bryn Mawr Factbook, published December 9, 2015, https://www.brynmawr.edu/sites/default/files/UG_Admissions1516_0.pdf ,
the decisions will be “mailed” February 1, though “dates vary slightly from year to year.” I would shoot an email back and ask if they meant late January or the first week in February. (Other “fun facts” in the recently published date are that the median combined SAT score of the freshman class entering 2015 has risen by 30 points over the previous year, and the number of applicants for the fall 2015 class has risen from 2,706 to 2,890, which seems to be a record. . . it’s not getting any easier to get in!)