1 year old turf....overseed/weed & feed?....

Hi there everyone, well spring is here and cant wait to get fully into the swing of gardening again :D

My turf is one year old now, and it has some wear from over the winter, i was thinking of over seeding next week along with putting down some weed and feed for the lawn at the same time, now what i want to know is it ok to put down the weed and feed the same time as i put down the new grass seed?

My mother in law says i dont ever have to bother putting fertilizer down but im leaning towards feeding the lawn really, what do you lovely people think?