Social Class: Monopobility

I am not 100% sure if my family has moved up very much. My grandparents on my dad's side were immigrants from Italy and my Grandfather worked many labor jobs, but retired as a plastic engineer and his wife didnt work. On my mom's side my grandfather was a methodist priest and his wife was a part time librarian. My dad also works as a plastic engineer like his father, and my mom works as a secretary and her new husband also works as an engineer. So I think in some ways i'm growing up in the same social class that they did. I'm not sure where I'm going to end up in regards to social class.