Doctor lectured me on being too young to have a baby?!

I went into the doctor expecting to be helped. I haven't been ovulating, and my husband of one year and I have been TTC since around the time we got married. I'm 20 years old, we own a home together that we bought when we were first married, and we are ready for a baby. My doctor (his name was Dr. Altman)  spent the entire appointment telling me why I shouldn't have a baby and should wait until I'm at least 25-30 (um what?) and then said "you know babies are a big deal!" Yeah, I know that. I was so angry! And what makes me even more upset is I had to pay for that joke of an appointment (hadn't met my deductible yet). It was not his place to state his opinion, whether he believed that or or not. I went for help and got bashed instead.