It is not only totally possible to be vegan, but it can be more healthy too. The Acadamy of Nutrition and Dietetics, the largest org for nutritionist and dieticians in the world, have a position paper out saying that a well planned diet is appropriate for all stages of life, including pregnancy. The NHS says the same thing. We even have vegan top athletes nowadays such as Djokovic and Hammilton. You can be vegan, so any justification you bring for violence against animals is for taste pleasure, habbit, culture and just generally not having evolved nor being up to date with the science.