Mother not talking to me over Vaccinations

Alanah • A xoxo
My mother currently isn't speaking to me because I'm going to vaccinate my child. 
I'm 8 weeks pregnant with my first and have already told her that I want anyone who comes to visit Bub before they're 6 months old and vaccinated needs to be up to date on their vaccines, in particular whooping cough. She's strongly against vaccinations because she thinks they're dangerous and is totally willing to forgo meeting her first grandchild for her beliefs. 
I feel like she is being unfair as it's not her child or her decision to make - however I don't want to go through this pregnancy without my mothers support. Am I being unreasonable? Or should I stick to my guns?