Bummed 😞

So my boyfriend and I had been talking about having a child, and now I talked to him about it today and he suddenly has changed his mind... I’m 27 and he is 37. I’m just bummed out because we talked about having a baby and he was on board, he even brought it up on multiple occasions on his own... I have a 6 yr old and he has an 8 ur old, maybe he realized that “starting all over” with both our boys being older would prove challenging, or that maybe he feels too old to have a new born around. Idk I’m just blah.... but when u love someone sometimes you have to make sacrifices, right..?