Baby Name Dilemma

Kellie • We are due with our first March 28th!
Ok, so on my masters graduation day for some reason I told my grandparents that my husband and I had talked about a using one of their names as a middle name for our first child (when that ever happened).  We just so happened to become pregnant in July, 2015. Fast forward to the beginning of this month, September 2015 I told my father in law, Scott, literally on on his death bed that we would name our baby after him, Brenton Scott. Last weekend my grandparents were joking around and were mentioning their names as possible baby names. I know they were joking around but I immediately felt guilty. So my husband and I we're talking about combining the names. Our last name is Bauman (we pronounce it bow-like wow-man) We've come up with just Brenton Scott, Brenton Charlescott, Brenton Scottcharles, or just making them 2 middle names. Am I overreacting? What would you do if you were me?