Thank you Sm1smom!
Thank you for your suggestion.
Thank you for your suggestion.
Congratulations on the birth of your daughter.
Regarding your questions:
1. No, you do not need to inform USCIS, while waiting for your IL, of the birth of your daughter, she's already a USC. However, be sure to take along her birth certificate when you go for your interview and inform the IO of the new addition to your family. They may want to update your family information at that stage.
2. There's no stipulated number of days one gets to wait for before receiving the IL following biometric completion. The interview will be scheduled based on your FO's workload. A walk-in bio doesn't necessarily speed up the process, so you just have to wait. You can also check past AOS timelines to determine DV processing time for cases at your FO.