Thanks for posting your query on health care magic.
Bleeding per vagina in a 50 year old female is something to be of concern.
Before starting the pills, i suggest you to get an ultrasound- transvaginal for endometrial thickness.
If ET is more than 5 mm, i suggest you to get a hysteroscopic directed biopsy
It is gold standard to rule rule out endometrial pathology if any.
If everything is normal, you can continue with the prescribed medication.
Hope this helps.