Thoughts on Cainen?

Stephanie • Modified wife, married 11/13/2015 to my amazing husband. PCOS and hypothyroidism. AFL stole our hearts 11/21/2017. Baby #2 due late 2019.

We want to use the middle name Cainen, but my parents are devout Christians and I’m worried they’ll object because it’s too similar to Cain. Thoughts?