Announcement gone wrong...

I am 30 years old, married, and attending grad school at one of the top universities in the country. Last night I broke the news to my parents that my husband and I are expecting our first little one (their first grandchild). It should have been exciting, right? WRONG. They told me I was "stupid". I got up and left (in tears) as soon as that was said. Keep in mind this is my Dad and step-mom. My mother is over the moon excited. I know they want me to finish school, and I will. It's just not the reaction you have in mind when you think about announcing such sweet news. on top of all that, I have a history of endometriosis and have had numerous complications over the years as a result of the endo. My Dad and step-mom are aware of this which only adds to the sting of their reaction. Has anyone else had family react negatively to their pregnancy news? My husband and I are both well-educated and financially stable. It blows my mind anyone could react to baby news in such a cruel way.