Don't worry. These things happen and you'll be fine.
There's varying opinions here on what to do. Some of us will say to split the does up over 2 or 3 days, some will say to take the dose now if it's been 12 hours or less, others will say to just continue as usual. Taking 14 mg it's my opinion that you should try to work in the dose into the next few days.
What I've done (I take 10/day - at night) is to take half of the dose in the a.m. and then split the remaining 1/2 dose in 1/2 and take some over the next few nights.
Taking 14/day means that you metabolize warfarin pretty quickly, so going a full 24 without a dose will probably drop you by 1/3 (and I'm guessing here and just going off of how my body reacts), that's why I'd go ahead and take 1/2 a dose, so you don't have your system going a full 24 without your Coumadin. For someone taking 5/day, I wouldn't recommend this and would probably just say to resume the dose as usual tonight.
I'll emphasize that my recommendations are based on what my body does and not necessarily the norm. But those of us that take higher doses of Coumadin do react differently than those whose dose is lower.