From Alex
We wear our wedding bands on the right hand so that we may look at it when we Cross ourselves and remind ourselves that our marriage was sealed in Christ.OH - what an education this place is
Here in the UK weddings rings are on our
left hand because , or so I understand [ and I'm dredging this up from one of those deeply buried recesses of the elderly mind

] the vein from that hand has the shortest distance to travel to the heart.
Having said that though, Professed religious do wear their ring on the right hand - likewise some Priests I have met.
Anhelyna
With apologies for the off topic - but blame
himself 
who produces these interesting facts