Youngs pear cider funny smell

[cookie1980]

I have been brewing my first cider, its been 2 weeks now and i have noticed a funny egg smell coming from my bucket, it smells quite bad and off putting, i was wondering if anybody has has the same experence, also i plan to keg the cider in corny kegs, whats the best way to do this...

3 weeks primary then straight into keg or leave for secondary??