Coworker borrowed money but doesn’t want to pay it back?

My coworker asked me to loan her some money until we got paid. That was three days ago. We’ve worked together for 2 of the three days and she’s had a different excuse every day as to why she couldn’t get the money out of the bank. Tomorrow she’s off so I offered to meet her somewhere so she wouldn’t have to come into work and even then she just kind of shrugged off the question. Her excuses were “she’s had a migraine” or “she was late to work” or “she was busy with her son” like ?? I need this money, not just to spend on whatever but money is tight for me. How do I bring it up again without sounding pushy and making it weird at work?