I'm about a month away from meeting DS2 and I want him to have both our surnames officially but only use his dad's in everyday context. DP isn't really ok with this and I we have problems as a couple anyway so not sure how long we are going to last therefore I don't mind rocking the boat a bit to get my way on this point. As the mother do I get the final legal say as to the name that appears on the birth certificate or not? Thanks