Too early???

so my boyfriend and I have been dating for a month now and from time to time he would talk about us starting a family together in the future, and he would often tell me how he doesn't wanna date any other girl again ever (implying he wants to be with me for ever). he seems to really care for me and love me, we're doing pretty good and rarely argue, and he seems to be really sincere when he's saying all that but do y'all think it's too early to already think and talk about starting a family& stuff at only one month of dating? he's 23 and I'm 18 btw