You are correct that for January and February 2021, you will either (a) meet with your supervisor as planned if she is able to make it, or (b) inform the board of the missed meetings due to your supervisor’s family emergencies in either or both January and February.
In the worst-case scenario (where you are unable to meet in both January and February 2021), you would not be penalized for the same and would not need to seek out a new supervisor.
Reference:
Supervision prior to Oral Exam