My current BF kept on talking about babies eventhough he knew I just lost mine?what's with him?

If you've only been together 6 months, and he's already talking about having kids, you need to nip that in the bud RIGHT now. If you're not ready to talk about babies yet, much less get pregnant, you need to let him know that. Have a long discussion with him and let him know that you're just a little sensitive on the matter right now and you'd rather he not talk about it. No one can tell you what he's feeling, so just ask him. Tell him you want a serious answer. Is he really ready for kids, or is he just speaking hypothetically? Does he see himself having kids with you in the future? That could be why he's talking about it. If he really does love you, maybe he's just fantasizing about what could be. Usually that's the woman, but men can do it too. I know a girl who has her whole life planned out. When she's going to get married, how many kids she'll have, where they'll live, etc... Maybe he's one of those people. The only way you'll know for sure is to talk to him about it. Good luck.