My mother 48 years, going through premenopause was having complaints of body heat, weakness and stomach discomfort went for pelvic ultrasound and have endometrial thickness of 13.2 mm with fsh 12.61. Her last period was on 9th June which was for one day very light. And before that she used to get once in a 2 months with normal bleeding. What should be the next steps? Should we wait for her periods? Or go for biopsy? Attached reports for reference