Can a traditional relationship be equal?

I hadn't really thought so much about it until my sisters in laws said that they could never be in such an inequal relationship as I am. They said they couldn't imagine not splitting everything 50/50 and felt sorry that I have to be at home with our baby taking care of most of our chores and not having an income of my own. It's true, I'm in a very traditional relationship where my SO is working and I'm taking care of our home, but I don't feel inequal. My SO helps me out as much as he can, and it wasn't entirely by choice it ended up like this (health reasons made me be at home a lot even before pregnancy so we just decided I might as well be home with our baby since I'm also breastfeeding). I definitely aim to be in an equal relationship so if I'm in fact not, that would make me sad. For me I guess equality has never been about splitting things 50/50, but more about the equal respect for each other. I think I feel my relationship is equal because my SO values me and what I do as much as, and probably even more than, himself and his own work. What do you think about equality in relationships? Is the equality of a relationship determined by if you feel equal or if you do things equally? Or anything else? I don't mean to discuss my specific situation, it was just how I began to think about it.