I have to agree with Amber, since my son began gs two years ago I have been to the new parents coffee morning, that is it. Jolly japes and fabulous times may have been had by all, but those emails either go straight to trash or via dh with a joke attached.
Some love them, some hate them, you are not obliged to talk to another parent again if you don't care to.
as long as you are supportive, do sporty or music or drama duties and pop in to the occasional de briefing.
You will feel better with your dh as a prop, in circumstances like that it is easier to force an introduction with your partner in tow. The parent reps should have been flitting around, mixing people up, maybe next time they will.
Your dc will be fine, kids make friends in two days at a holiday camp site, it's us olds that are far more reserved.