Will getting my name legally changed invalidate my passport?

I am getting married in less than 2 weeks, and I’d planned take my husband’s name. I was told when I do this, I need to get a new driver’s ID, and new social security card, and a new passport to reflect the change. All well and good. But my sister is getting married out of the country in August, and I’m worried that if I jump through these hoops, that I won’t receive my new passport in time to participate in her wedding.

If I end up not getting my new passport in time, will I be able to present my old driver’s ID, SS card, passport, with my new driver’s ID and SS, will they accept the old passport? It is not expired… I renewed it 3 years ago.

I’m about 98% certain getting married won’t change my face much in 3 months time, so the pictures will still be correct. :) I realize too that I could circumvent this issue by waiting a few months to change my name, but I was really looking forward to this step in our union.