No no no hun, go for 2, I bet you deserve it. There are a couple of things, I find help. My DH goes away often. ATM he is away for 6 weeks. Here are my tips

Set up a calendar that has a sticker (his favs) on the day you get back, and he can put a sticker on each day that comes and goes and he can see how long it is until you get back. It's not so much the day count down that he will understand but it will be comforting for him to hear your mum talk about you coming home IYKWIM. I got this idea from a very good friend of mine, whos DH is away a lot than mine, and she copes very well with a 4,2,1 yr old, my hero!!!

Another goodie is Skype. If you have a laptop with a cam you can take with you. It's free to set up and is great. My kids can see him whenever we are both at our computers for free, it's great.

But please go enjoy yourself for the 2 weeks, if not for you but for all us else on BB that wishes we could have 2 whole weeks to ourselves
I'm with you hon on both the calendar & skpe/internet camera points I recently did my dream trip to the UK & Ireland for 3 weeks this past March/April. At that point Maddy was just over 2. We kept a regular schedule with Daddy working and doing the drop off/pick up at daycare for Maddy (I went overseas with my friend). We had scheduled times that I 'rang' them on Skype and Maddy loved it - in the morning 6am Australian time as they were getting ready for the day, and at night at 6pm their time as they were getting back into the house. She'd have a chat to me over the camera and I sent them regular parcels with pressies etc.

I missed her like crazy, but DH did a fantastic role keeping her entertained and I'm not sure she missed me all that much with being spoilt by her Aunty & her grandparents.