Wrong prescription contacts ?!!

So tomorrow is my first day of school and I need to be able to find my way around. I currently don’t have a pair of glasses since mine broke, and the contact lenses I ordered have not arrived yet. Would it be okay if I wore my friend’s pair of contacts? (they are dailies, so they are new and never worn before) however they are not my exact prescription. Hers are -1.75 and mine are -2.50. Is it bad if I wear them for one day?