I rec'd the child credit in sept and oct My status was marked pending the other months. How do I get the 300 for the other months? my exhusband is claiming child next

Hello, I received the advanced child tax credit of $300 in September and October. Prior to September and after October, my status was "pending". I'm uncertain as to why but now I want to check on how the payments for July, August, November and December will be dispersed. My exhusband will be claiming our child the coming tax season.