endometrial cancer

Newly diagnosed totally out of the blue, so grateful for a laparoscopic hysterectomy next week, looking for advice on what knickers to  get disposible or , big pants or just usual bikini ones. Am slim , have t got a clue. Am just totally terrified. Cardinal lymph nodes are going to be biopsied during op and then surgeon will continue to take nodes if necessary.  Wonderful husband but not coping well.

Grateful for any advice