What I don't understand is this - If you knew your husband would be taking the oath on Oct 17, why did you mail the forms on Oct 15? You couldn't wait 2 more days? You need to call uscis so they can update your category!
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You do not. Once he is a citizen, file for AOS, provided you entered with a qualified visa.
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I don't know how you applied for travel permit if you filed under your husband's green card. Once he gets naturalized and you receive a receipt for you application, you can update your records with USCIS, file Adjustment of Status if you qualify for it ( that is if you entered with a valid visa), apply for your travel permit etc. Remember your process can go much smoother with an attorney who canlook at your particular circumstances, tell you of any problems you may encounter and help you prepare to address them.