Do you find breast feeding to be a money saver?

So I've decided I will not be breast feeding for many reasons in which I will not get into. One being medical reasons. I am also aware of the pros and the cons and have spoken to my doctors about it. (If you're going to judge, don't waste either of our time please and just leave this post). My SO insists I breast feed for it will be a big money saver. He's in the navy, stationed in another state than I and is often deployed. We're not married so both the baby and I don't get any benefits. And money is tight, I will be a stay at home and he doesn't make as much as everyone things people in the military make. My brother being a mechanic with no school experience makes more than him being a baby engineer. I've choosen to not breast feed due to health issues and other reasons but I am thinking about it. Since I'm scared money is going to be tight. I'm wondering, has it saved a lot of money for you mamas? Thank you.