What does it mean when my boyfriend talks about marriage?

So Ive been going out with my BF for just over a month, we are both 16, he is 17 soon. We get along great and we have never had an awkward moment, but he has mentioned marriage a few times while talking with me and always talks about the future, with me still in it.
Does this mean he loves me but just hasn’t said it yet? I mean, we’ve not been going out long, surely he can’t love me yet??

Someone tell me what this could mean! Thanks!