Presto it was a bit of a saga. You see I was not too successful bfing my first two babies but was so determined to get it right with the third. WIth the help of mumsnet and Mears in real life I learned so much more about bf .
I made it my aim NEVER to give him formula (this thanks to Mears' advice - she has four children , and none of them had formula) and actually did not often give ebm either .
Most women assume even if you bf for a long time at some point you will need to use formula but this is not true. The formula companies are very clever in their marketing with the so called "follow on " milks.
If I was away he just did without and resumed feeding when I got back. Afraid I can't remember the arrangemment first time round when he was about 7 months . I was in hospital for two nights and I did leave ebm behind but by then he was on to sloopy first foods, and anyway I decided I would rather he drank water if he was thirsty than formula.
Now that I remember my dh brought him to the hospital on one occasion for a feed so I don't suppose that counts as much of a separation.(I remember now he was actually exactly six months old when I was in hospital)
Next time he was 12 months old and still feeding loads. I went to Canada by myself for a week and was quite worried he would not be interested on my return but we just went right back to where we had left off.
I did the same thing when he was two - left for ten days and again no engorgement and no problem resuming feeding.
Mears, no, I am not still feeding him
Best of luck! Have a great holiday and have comfidence in your body!