Adjustment of Status - I-485

Just had my interview today at Federal plaza, we got there just before 9 went trough security and wait for my interview at 9:30, we didn’t get call till almost 11. Our officer was Mr. Eng he was very serious and kinda rough but very professional, took my picture and did the oath and asked for joint docs , w2’s, tax return, birth certificate, passport, marriage certificate and a couple of pictures, when I gave a picture of us with our kids he asked who they were and I said our kids, that’s when he totally relaxed and mentioned that us having kids cut the interview really short. He asked basic question , like my name my husband name, when did we get married, name of our kids, where are my husband’s kids from previously marriage and that’s it. Then asked the same to my husband and then some of the yes and no question. He didn’t really say that we were approved. While looking for something in his computer he started to talk about other cases he had and then handle me a paper with the 120 days but said because we have kids that time as well it will cut cut short and should be getting answer in 30 days or less and said he needed to do check the background check and that was it. It took about 20 minutes. Good luck to everybody!