Travel without travel card

I applied for marriage based green card in April. I did not receive any update on biometrics, work permit or travel document. Recently I got yo know that I have my biometrics appointment on Nov 8. I have couple of questions on that:

  1. After my biometrics, when can I expect to receive my EAD/travel card?
  2. I had plans to visit India in December of this year. If I do not receive the card before the first week of December, how safe it would be if I travel without the card and my spouse sends it to me in India and I return back with it?
    I came to US as a student and my spouse being a US citizen, we applied for my green card. I do not anymore have my student status and have been waiting for my work permit to start working.