When do you think we should move in together? Get engaged? Get married? Have kids?

We started dating when I was in eighth grade and he was a junior in highschool. Im now a sophomore in highschool and he has graduated but had to take a year off to care for his ill mother instead of going to college. We both are extremely mature for our age. He moved out of his house due to an abusive father at almost 17. He has been in his own place from then till when his mother fell ill last summer. He plans to go to a 2 year college next year and when he graduates that school, I'll be graduating highschool. Then I plan on attending a four year state school to get my bachelor degree. After my bachelors I will likely take a year off to work and then get my masters online or go back to a campus, depending on if I feel that my education should be furthered or not. We have decided we will get engaged, married' and have kids in the future but neither of us have decided on a 'perfect' time to do each of them. I'm just asking for your input, thanks! I think that in my head, I'd like to get engaged before I start college. Then It'd be wise to hold off getting married until about a year or so after I find a job post graduation. Kids are totally just lost for me. I really really appreciate any and all input!