what whould i do

me & my child father still dont live together & its annoying we been together for 5 years i have a 8 month daughter with a son on the way .. one day he says he looking for apartments building his credit etc then next min he says its not best for us right now cuz we fight a lot .. im jus starting to feel we have no future & hes being immature .. is there a time limit or should I give it another year or so ? i see no reason we not under the same roof if we a family now he claims he is stressed & overwhelmed wit alot too but idk anymore