We were due to get married in December. Relatively low key buffet type meal few hours in the town hall. I'd decided on a 'nutcracker' (as in the Christmas decorations) theme as it is also a naming ceremony for our son. Now it's all pushed back to end Jan. whilst i think it would be weird to have the same theme, I don't think anyone (except my mum) would mention it, I'd already got a few decorations, and i can't really think of any other theme (other than getting a few flowers).
YABU - ridiculous, think of something else or just chuck some flowers about
YANBU - it's still winter so ok