That 90 day window is the EARLIEST you can apply. There is no end of the filing period. You can file any time after the window opens as long as you maintain the other filing requirements. I have asked the friendly mods to move this to the proper forum.
I don't recall a requirement to submit anything to prove that on an N-400. You just list your places of residence and dates of residence. I have asked the friendly mods to move this to the proper forum.
Those short trips did not break Continuous Residence. You fulfill the Physical Presence requirement, too.
Chapter 3 - Spouses of U.S. Citizens Residing in the United States | USCIS
By my calculations, you can apply on or after 9/1/2023. You can apply even if the I-751 has not been processed. Good luck.
USCIS Early Filing Calculator | USCIS
"Administrative Processing" usually means they are waiting for something. Maybe just awaiting verification of a supervisor..
@Mike E @Boiler @Redro @SalishSeaThoughts on this one?
That date shows the date of entry. It should be entered. Without the date, how do you know when the visa holder entered?
My wife's stamp was not empty.
I don't think your visa was properly endorsed if it doesn't show entry date.