How come I haven't got I-140 receipt? worried

I am working under OPT which will expire soon in March next year.
My lawyer filed the paperwork with my visa screen about two weeks ago but by far I only got the reciept of I-485, I-1765 (employment authorization) and I-131 with the same notice dates.

What's up with I-140? I should have recieved them at the same time. Is it because the I-140 department have more paperwork to deal with, so the receipt will be sent later???? Is this because of the retrogression? I am from Thailand, not one of the PIC countries... but is the expected retrogression worldwide or in specific countries?

My lawyer said because of lots for paperwork, sometimes they will send the approval for my case soon without the receipt..that also happens..they might forget or they sent it some place else(my address, or hospital adress)... just don't worry about it..
Anyway without the receipt of I-140, I cannot follow up on my case!! Should I insist my lawyer to follow up if he hasn't received it within a month.

:angryfire

What should she/he do if he/she do not get the receipt?

Does any of you get I-140 reciept later than I-485, and other receipts.
I hope my I-140 receipt should come in next week.


What about fingerprint for I-485? Do I need to get it done ASAP?