Dealing with the consequences

So I came out to my mom a couple of weeks ago. I had come out to a friend earlier that night and I felt incredibly strong and proud by that, so I thought "what the heck? i'm gonna tell my mom now as well". I figured I would tell her and go home straight after (had to catch my bus!) but obviously that never happenend. I stayed and we talked and talked.
She didn't take it as easy as I thought she would. She said she had known (as did everybody else I told) but that she had hoped it would have been different and that she "had to adjust the mental future picture she had created". Ouch. But she delt with it fairly well. The first week or so, she tried to push me into coming out to my brother, felt offended for telling her last (of which i'm glad i did, btw) and made jokes about my sexuality on every possible occasion. That was her way of dealing with it and she didn't disinherit me or anything , so I can't complain. That was three weeks ago.
Now, she has more or less accepted it, which happened pretty fast, if you ask me.
We went shopping this afternoon and for some reason we ended up talking about kids. She told me it would be very hard for her to think of the child a future partner MIGHT conceive, as her grandchild. Ouch, God, I love her honesty..
So yeah, I know it's far away and possibly won't be like this when it comes to it after all, but still I'm kind of confused. I don't know if I should be happy with the way she's taking it.
At least, all the other people who mean the world to me, know and accept me. They still love me (I think ;) ).