Thank you all so much for your replies. I get the sense there are a lot of caring individuals here. Signing up for another symester would be a good idea but we are moving out of the area right after graduation. We are both planning to move from Wisconsin to Tennessee where she will hopefully get a job in teaching. We are actually going to a career fair in Tennessee next week so hopefully she can secure a job before school comes to an end. I will make sure to have her contact her fathers HR department and will also have her check the exact day her insurance coverage will come to an end. I understand that Cobra is really expensive but I think in her situation it is the best option we have. Thank you all for your support.
Depending on her insurance, she should be able to sign up for another semester, even in a different state and be covered. I know under my parents' plan, they just mark me down as a student, and I can go anywhere in the nation with full coverage, paying the same copays, as long as I'm a full-time student, and I'm under 25.
You mentioned that you're both from Wisconsin, is the plan by chance WEA? That's what my mom's plan is, so I know the most about