Only if you're planning to change it after you've said 'I do', obviously. If you do, you'll have to decide if you're changing it professionally as well as personally, as well as have to practice a new signature, too. Plus, you'll go from a 'Miss' to a 'Mrs' - which at first, until you get used to it, will sound unnervingly grown-up.
Your focus and priorities
Regardless of how chilled (or frantic) planning your wedding was, there will be a void after the big day - is it a surprise the post-wedding blue are so common? Whether it's a delayed honeymoon, a big project, a new goal - set yourself something fun or rewarding to either look forward to or start working towards, meaning the 'void' will quickly be filled.
The way you feel about your partner
Because becoming each other's offical life-partner will undoubtedly lead to a ramping-up of your feelings for each other - and your committment to your relationship. If nothing else, the novelty of referring to each other as 'husband', 'wife' or 'legal spouse' (casual) will take quite a while to wear off.
All that budgetting from planning the wedding will probably stretch it into your post-wedding lives, too. Now's the time to start thinking about what you want to save up for next: whether it's a new home, a jaw-dropping holiday, setting up a business... Also, if you don't already have a joint bank account, now's the time to say 'I do' to one. Yes, we went there.
Your thoughts on other people’s weddings
Whereas before you would have scoffed at the idea of having a breakdown over napkin arrangements or errant bridesmaids or canapé options - now, you get it. You get it.
Your spare time
Whereas evenings and weekends were previously spent in a whirlwind of wedmin, you'll now have them back to do whatever you want with. Make it exciting, people!