Eating badly for 4 days - will it wreck my chances?

Lisa
I'm going on holiday, and I'm worried that having 2-4 days of bad eating out of a whole month will stop me conceiving this month. The rest of the time I eat a fairly balanced diet - all the vitamins, cranberry juice, getting enough calories, cough medicine, keeping my hips propped up after every other day sex...how bad 2-4 bad days be? Thanks :)