Doctors judgment

Okay I am a month away from being 20 years old and my boyfriend is 25 and we want a family in the future. I mentioned to my doctor that I have struggled with fertility in the past when trying consistently for 2 years at barely 20 years old that would be concerning to someone right. Well, my doctor instead of listening to my concerns told me three times that I am too young. I am an adult. I have a job. I have a place to live that I rent on my own My boyfriend has a place of his own. A place that he owns. He has a car. He has an amazing job that pays well and if we happened to get pregnant we would be able to support a child financially and we both have cared for children before. My boyfriend is an uncle and helps care for his niece. I was a babysitter for 6+ years to kids newborn to 13 years old. So what is so wrong with me wanting to be a mother and my partner and I trying for a baby. Why am I not able to get answers because of my age?