should I stay or run ????

my new boyfriend is MOVING WAAAAAY too fast. so we both young right? but he have children already . and I don't I'm 18 he wants me to have his baby by NEXT YEAR even this YEAR ? that's why I haven't had sex with him yet , because I'm not on birth control and he told me he allergic to latex . well anyways we haven't had sex yet but he wants my name tattoo on him . I'm like what? It kind of scares me like what if I do end up breaking up with him . He will not let me go . & he already talking about moving in together. Or moving out of town . We not even a month yet. So what you guys think STAY OR RUN?