why do I have to wait for

Hi, good afternoon everybody
first My visa is J-I, and then change to be H-1, last year I married to a American citizen. he help me to apply for my green card. my son and I passed the interview May this year, and my son has already received his green card. but they told me I have to wait for a letter , and then bring this letter to stamp my passport, then I will get my green.
I want to know why I have to wait , but my son needn't.
how long time will I wait?
thank you for your help
have a good day

所有跟帖： 

• 回复：why do I have to wait for -b2f1- ♀ (234 bytes) () 06/18/2004 postreply 16:00:51

• thank you so much. good night -elledge- ♀ (0 bytes) () 06/18/2004 postreply 19:11:42