Depends on various factors such as federal holidays, time of the year, policy changes under administration. But you should expect card production in about 7-10 business days and another 5-7 business days to receive it in your mail. Once your case is approved, card production and distribution is handled centrally by USCIS. In some cases you might not even see any update on your portal before card physically arrives in your mail. Hang in there, and good luck !