No children 😓

I am only 18, and I do not want a child for a long time still. But I do want one eventually, sometime in my life. The problem is my BF is completely againts having children. Ever. He is 20, and seems dead set that having children will be the death of him. It's like he's scared of something. I told him that I think I'd like a family some day, and he said he would, but only because that's what I want. 😞