Green Card base on marriage interview

Hello! So today my spouse and I had an interview (I'm an immigrant), the officer was exceptionally nice, I actually enjoyed speaking with her, but in the end of the interview she said that she hasn't gone through all the papers and that's why she's not stamping my passport (she wrote smth there "section 245 interview, i-485 pending..") but she also said that I would receive my green card soon! What's that supposed to mean? Is there more work to be done like doing the background check etc. , and how soon do people usually receive their green cards in this case? Thank you!