Adding common law post AOR

[Feminap98]

I have an urgent query, I submitted my application for CEC yesterday and received AOR. However, in my relationship status I did not mention common law because we both had separate express entry profiles. Now, is there any way for me to change that and add him to my profile post AOR? And if so will there be a huge problem because my express entry profile did not not have my status as common law but as single. Please advise, thanks!