Josh, you will have to file for your baby since they were born before you receive your US citizenship. ( Note this is not a legal advise, but a personal experience).

no . you have to apply as new process. we are in the same boat.

the bady can only become a citizen if you are a citizen you have filed i130 petition for the baby

my wife's document are been DQed, waiting for an interview for 7months now, can I go ahead and add our new baby as derivative, now my question is will that cause my wife's Q in line waiting for the interview become reset or will maintain her place in line

Helpful links: https://www.uscis.gov/citizenship/learn-about-citizenship/i-am-the-child-of-a-us-citizen https://www.state.gov/global-community-liaison-office/naturalization-of-foreign-born-spouses/naturalization-for-children/#:~:text=USCIS%20may%20not%20automatically%20issue,her%20own%20certificate%20of%20citizenship. This might be helpful and will answer your question