Is it just me or?

Warning long post: So there is this thing my bf says to me when we discuss kids or other things, I wanted to talk to him bout getting ovulation tests so I can track it mainly because I'm not sure if I am ovulating properly because of my irregular periods but the other reason is so I know when is the best time to get pregnant.. But he always says this one line when ever we talk bout my body or doing something for my body that makes me feel like I'm pushing something or that he really just doesn't care... He always says "I don't care its your body, your choice" now I may be taking this out of context but to me I understand that it is my body but it is not my choice I feel like it is both of our choices if we are going to be talking about children and bringing a child into this life. I don't want all the decisions to be mine I want it to be ours but when he says stuff like that or he just says well we can't afford one we're not prepared it makes me feel horrible like I am pushing it way too much I feel like I'm going to push him away because of it. But to me I'm ready to have one and the one thing that always pops into my head when he just says that he doesn't care that we're never going to be prepared is the thing that my grandma always told me is "if you wait n wait just to be prepared it will never happen" now if people don't understand that what she meant was if you wait till you're prepared to have a child you will never have that child... ( she also added that when she had my mother she was nowhere near prepared to have her she was never prepared to have any of her kids but she was glad that she had them because if she had waited to be prepared she would never have had them)