You know it does not matter when you shoul talk about your future. The only thing you must understand that this man is the only person you want to be with. I think there are not problems with it. If you are sure that you love your boyfriend and he loves you too, i think it is the best time to talk on such theme. But love is not one thing that is needed for happy future. You must understand that your partner is ready for this too. He must be one person ypu think about, he must support you in different situations. And you too. I think it is the important factors for being a perfect family in future.
There is no optimal time that is the only one for everyone, as all of us are quite different. For example, one person may start talking about future plans in just two weeks of his relationships, and another one may not talk about future at all. Everything depends on a person himself.
It's time to talk about the future only when you see yourself with this particular dude 5,10 years from now doing alright.You should never be in a hurry with this one-consider all the possibilities,do you know your partner well enough,how much do you have in common.Only then you can take that big step and start living together.And if you'll pass the test on living on the same territory,than you can start thinking and talking about marriage (if you need it-I don't) and having a kid together,cause the latter is a true big responsibility.So weigh it all wisely. ;)
As for me it depends on the seriousness of your relationships. Everything depends of feelings and the question : “Do you love him”? If yes, then there is no the right time when to start such talks. It does not even matter how many time you are together, what level of the relations you have. All the matter is your love. If you know what you feel and are completely sure in the feelings of you partner then just go, grab him, sit down and start conversing about the next level of your life. If you want to get marry, then talk about it, if you are not ready, then don't. It is really so simple. Do not be afraid of acting, otherwise you'll get stuck)
Talk about the future is exciting and interesting. We are all interested in what will happen to us in the future. It is especially exciting to discuss the future with your partner, to imagine your home and family, to distribute responsibilities and decide who will prepare coffee in the morning. Often you understand that it's time to talk about the future and you do not need someone's advice. If you still doubt whether to talk to a guy about this topic, then you still do not trust him fully. If you're aiming to talk about it seriously, then do it with confidence. Your favorite will definitely not be against it.
You know i think it is a problem for those who have big different difference in age. When people have big gap in age they have different goals, they have different life experience and it can cause a problem when they start to talk about future. but again it is important to think about future, to build plans to set goals. you can't live without goal. and as for suitable time for such talks..
think all couples fall when it is time. it is deeply intimate relations and you two should fell is it time or you don't plus after long communication you should know each other and your reactions to such questions.
Place for chatting and discussion of important questions, place where you can share your stories and experience, to find friends and to become friend for someone.