My grandparents did not even allow eggs to be brought inside their home. They provided a separate vessel to boil eggs or prepare chicken (again strictly no beef or pork or red meat) if someone (the later generation) in family desired to eat it, but it had to be cooked outside the home in the garage or shed. We have been born and brought up that way and we never felt the need or urge to eat meat. Strange as it might seem, I ate beef only once in my 53 years of existence and that too just out of curiosity. But we haven't felt the need of protiens that meat provide us as we had never been exposed to it. Of course we have lived normal healthy life all these while with very little sickness or physical weakness.
I am saying all this to say, it is perfectly normal and very much possible to stay vegetarian or Vegan for any period of time that you choose to and continue to stay healthy. For us in India, it is our natural dietary habit (we are Hindu Brahmins community to be specific)
I wholly understand that It is indeed challenging to you, considering your regular dietary habits and I hope you come out stronger and very positive at the end of your month long Vegan sojourn.
RE: Why I'm Going Vegan For a Month