Honestly, it depends where I'm at in the relationship. If it just started, I'll make plans to hang out a week or two from now. However, when I was engaged, we were planning our wedding that was 2 years from then. SO it just depends on what point of the relationship I'm at.
We've talked about wanting children together, but don't have a time frame in mind. We don't really know how long we'll be together (who does?) so it's sort of a take it as it comes and hope for the best situation. 18 months together, for reference.
I'm not really sure what to pick. We don't really talk much about the future aside from buying a house, which is in the near future. We do talk about wanting to buy certain cars or work for certain companies. Other than that, we just take it day by day.
Depends on how long I've been with my partner. If it's really serious, then at least a year. If things are still new, only a few weeks to a few months ahead.
When I was 19 I had a girlfriend launch into this huge discussion not even a week after we got together about her plans to get married and have kids ASAP. Needless to say, we didn't last very long, so I try not to do that to other people.