Right - this is what I meant. A lot of programs have rigid vacation blocking or weird quirks/rules about it.
For my program - all vacations are Monday-Sunday - seven days. And you can't take more than one vacation per rotation. So it's a big pain for weddings since they are conventionally on a Saturday (i.e. you have to come back to work 1 day after your wedding). A couple of people in the past have managed to schedule 2 weeks off, but they did it by taking the last week of one rotation off and the first of another.
Other programs I know have weird rules like you can't be on vacation on the first or the 31st (because they don't want vacations at the same time as the rotation switches). Or like said above that there may be certain months where it's not allowed.
It's just really hard to know what will happen, as said above you would have to be prepared to lose the deposits.
And that doesn't even get into the practical difficulties - it's going to be a really stressful time as an intern and you won't be able to contribute much to the planning efforts.
True. And I would also add that some programs do not allow vacation during certain months (I wasn't allowed to take vacation on my ICU month or any of my 3 ward months). Granted, some programs may avoid scheduling you that month if you are planning to get married (mine would have).
OP--if you aren't able to reschedule your wedding to before intern year (or to 2nd year) at the very least inform your new chief residents as early as possible. Hopefully that way they can schedule you on an elective block (if you get one intern year) or something lighter where it's not such a big deal. But it will still be very, very hard to plan a wedding during intern year unless you have a pretty light year, which is a rarity.
I still really think 4th year is by far the best time to get married in pretty much your entire medical career. (Other than summer between first and second year). I'd highly recommend starting your marriage off on as happy a note as possible, and I think you being able to participate in wedding planning, not being super stressed out (if you're on ICU the last thing you want to think about is the seating arrangements, etc.)
I have a different philosophy than others, but I think the simpler a wedding, the more special it is. I don't understand the need to spend months and months or years to plan a wedding, and dropping $20-50,000 on the venue, catering, inviting 200 people you hardly know, etc. (Though if your folks are paying, I get the need for that--but I still think it's wasteful--I think it'd be better to put that money towards getting the new couple started in life with a leg up such as with a down payment for a home).
We did a really simple chapel wedding (the CA Missions are really great for that), invited just immediate family and closest friends (~25 people, so really small), and had the reception at my parent's house (small vineyard in the backyard). My sister catered. My brother handled music (iPod with speakers). Most of the cost of our wedding was from flying to CA and back, flying the priest to CA and back (we wanted our college priest), renting a car for two and a half weeks, boarding our dog for that same amount of time, and the honeymoon (Yosemite--seriously you can't beat it). It was incredibly special and intimate, and I would have done everything exactly the same. There was hardly any stress--we could've planned it less than a few weeks. Our families got together to literally make the wedding for us, so it was very personal. Yeah the decorations weren't as fancy, there was no limo (just a rental with "Just Married" written on the back) and we didn't have crystal champagne glasses (not sure we even had champagne...), but it was great.
Ultimately everyone should have the wedding that's right for them. If someone wants to spend $50,000 on their wedding and can afford it, who am I to say that's wrong for them? But I just think the simpler and easier a wedding is, the more enjoyable it is. And I think a lot of people overlook that.
Sorry, I'll get off my soapbox now.