Won't sleep in his cot 😩

Laura • Ethan Ashley born 20th September 2015 at 12.08am weighing 8lb 👶🏼
Since Ethan was born he was sleeping in the Chicco next 2 me bed. Last week we thought it was time to set up his cot (his in the same room as us because we're still waiting to move). At night I'll give him a bottle and sometimes a bath depending what night it is and he'll go to sleep till about 2-3am then cry really loud so I'll give him his dummy then he'll go back to sleep but he'll drop it out his mouth over and over then sometimes he cries with it in 😔 it's to late to be messing around getting him back to sleep so I just put him in bed with us till he falls back to sleep... Is anyone else having trouble? Someone please help I don't want him to be in our bed every night he was better in his next 2 me bed but that couldn't last forever.