Advice plz

My cousin is 25 years old, she is a hevy seat kind of girl. She and her man been try for at least a couple months, but they actually been try since I had my first child that was over two years ago. Her doctor dint even exam her look at her told her she probably won't have kids bc her eggs aren't producing like thay should, she took a ovulation test last weekend and it gave her two lines that had a light line and dark line it said wAite 30 minutes and read result she say it said she ovulation well her restating say negative will she ever be able to have kids? She had to have a pill last month to start her bc she went 3 months without one?