#1 has my surname - ugly relationship with father. even though we were together i made the decision to use my surname

#2 had his surname(different father to #1) - never gave it a second thought.

#3 will have his surname(same father as #2)

Im pretty attached to my surname. Im still unsure when we marry if ill takes his. If i take his ill use both until i either change #1's to df's or if that doesnt happen until #1is older.