Menopausal age gr ranging from 45 to 55 yrs (average) and it varies from woman to woman.
In this stage ovulation is unlikely but may be sometimes as you got regular period now a days.
Do a USG lower abdomen to rule out underlying pathology if any and causing abdominal pain
You may take above med. Consult with your doctor with test result.
Also maintain your personal hygiene to avoid infection particularly around genital area.