I’m so confused

My boyfriend said recently that he’s not sure he wants kids in the future, he likes the idea of being able to travel lots (which I don’t know how that will work when we work full time lol).

I was a little sad because I think I want kids in the future. But he constantly sends me photos and videos of his sisters children and videos of him playing with them. It confuses me because I don’t know why he sends me those when he knows I want kids of my own.

He even broke up with his ex because he wanted kids and she didn’t