Hi Mohamed,
What the others have told you is right - You do have a new 90 day period to get married after you arrive in the USA.
The USCIS also expects you to file your application for 'Adjustment Of Status' (AOS) within the same 90 day period, but you must have a copy of your new marriage certificate for the application package. So why not try to prepare the AOS package before the wedding so you are ready ... get married ... add some wedding pictures and a copy of your marriage certificate, send it off immediately (or after the honeymoon, if you have one). Then you can sit back and really relax for the first time in months! If the USCIS does not receive your AOS application within 90 days of your arrival, you are officially 'Out of Status' - who wants that?????
I know it all seems like a rush to get everything done now your visa has arrived ... But do try to send off the AOS application within the 90 days if you can. Some cities take many weeks to return a marriage certificate to couples after their wedding, but that's the only good reason I can think of for a late application.
One last thing - I notice you mentioned your
wife and child ? If you are coming to the USA on a K-1 visa it is for fiances to enter the USA to get married ... it is
not intended for husbands/wives to use .... It is much safer to call each other
fiance, just in case it confuses the USCIS.
Anyway - Congratulations on your visa, by the way!

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QUOTE(mohamed N melinda @ Mar 25 2008, 02:41 PM)

thanks for ur help
but should i apply adjust of status be sep16th or i will have new day after 90 i enter usa?