19 Years Old and High Risk because of my age....

I am 19 and I am married. I also am a certified clinical medical assistant and a college graduate. My obgyn labeled me today as high risk due to teen pregnancy then gave me a book on my options (abortion, adoption, etc). It honestly sorta broke my heart. Why am I high risk when I am healthy, happy, incredibly loved, and am willing to fight for my child? Also why give me a book on information for teen mothers. Yes I am 19 and still a teenager but when I have my child I will be 20. I do not like how they have put me in a box. I’m not some whore who got knocked up and doesn’t know who the baby daddy is. It is incredibly hurtful. Do I have a right to be upset or is it just hormones?