Adjustment of Status - I-485

Hey Everyone.
 
         Had my interview on 12/07/16. We were called in by a lady . She swore us in and she asked to see our original documents . we gave her our marriage license, updated medical result , i-94 , passport, id's and joint documents like utility bills, joint bank account statements ,lease agreements joint club membership cards, dental insurance cards and receipts, joint pharmacy discount cards, photo book ( about 25 photos), pay stubs, joint electricity bills, payment receipts for our rent., joint car insurance ,joint car registration & car title etc.. i gave her the photocopies too and she thanked me for organizing my documents and said i made her work easy.
she asked -

- how we met ?
- who proposed and how i proposed?
- if we have met each others parents?
- how many accounts do we have ? told her i have another acc which i dont use - regularly as my pay check goes into our joint acc..
- she asked to see our wallets. brought out my debit card and asked my wife to bring hers. my wife told her she didnt have it with her .
- she asked where i bought the ring , ? i told her i bought it online and i gave her the website.
- she asked my wife to show her the rings and she looked at it closely and asked me how did i know it was original and if it had an appraisal. so i told her it had good reviews.
- lastly she asked us who and who was in the photographs and also if my wife was gonna take my last name . she sad yes .
then she told us to expect a mail and gave us a paper stating that ''our case is being held for review''.
Till today my case status hasnt changed nor received any mail from uscis.