Congrats on both, sounds like 2015 is shaping up to be an exciting year for you!
I've recently been through a cycle of IVF and, while it wasn't particularly physically gruelling, I was grateful for the peace I had in the rest of my life at that time (unstressful job for the first time in my life, lots of free time, relaxing weekend walks, etc).
The key thing is to find out exactly what protocol they intend to put you on, and what the timeline will be. If it's a long protocol then you may have a few weeks of taking the pill, followed by a few weeks of down regging (which might just be a nasty potion to sniff a couple of times a day), then followed by the "fun bit" (!).
In a short protocol, you'll skip all that, and just start straight on the next stage - stimming for 7-14 days (usually around 10, depends on how you respond to the drugs), with regular blood tests and scans during this time. The stimming drugs I used had to be kept in the refridgerator, and the injections must be done at the same time every day - eg between 6pm and 8pm. Once the follicles have grown big enough, this is followed by a "trigger" injection to make the eggs mature, and 36 hours later egg collection (local or general anaesthetic, or heavy sedation, depends on what your clinic offers). You'll need at least one whole day off work/heavy activities for the egg collection (I went for a stroll that afternoon, as it just felt like period cramps, but I've known women to take a whole week off, mostly staying in bed, with severe pain). Then either 3 or 5 days later you will go back in for the embryo transfer.
It's worth noting too that many women suffer considerable discomfort during the end of the stimming phase - especially if they have lots of large follicles. I was fine, as I only had 7, but I know several women felt very sore and bloated at this time. And once embryo transfer takes place, you're going to want to take it easy somewhat. I went for a long stroll on the same day, which was fine though I was very tired at the end. But I wouldn't have wanted to climb lots of stairs, and certainly not carry any heavy boxes.
So to a certain extent, once you know the protocol and start date, you could sit down with a calendar and work out roughly when things will happen. But you won't know for sure in advance - I left work on a Friday afternoon, not knowing if I'd be back on Monday or not, because it was only on the Saturday morning scan that they told me to "trigger" that night, and do egg collection Monday morning.
I would suggest you are honest with your clinic about the challenges in January - they can't put you to the back of the queue again! And they will want you to have the best chance of success, not least for their stats. Moving house and an IVF cycle could be done in the same month, if you can transfer a lot of the heavy work and stress to someone else. But don't forget that we don't get many shots at this, and you might feel terrible if you have an unsuccessful cycle and wonder if it was the stress/heavy boxes/chaos of it all that contributed.
Happy to answer any more questions you have. Hope that wasn't too scary!