Is your nationality application coming soon?
Just a note to urge anyone who is close to making application, go to your AIMA office and request a "Contagem do Tempo." I and my immigration advisor were not sure if I was able to submit early or wait until the date on my residence card... turns out in my case they have my residence date beginning at the start of my D7 residence visa. This is what I'd hoped for... I thought it would be the date I arrived (one day later) but for me this is good news. You may also receive good news if you take this step.
Anecdotally, I've heard that the AIMA stores where you can request a time measurement are the AIMA locations in Alverca and Setúbal. I have no idea if these are the only 2 locations.
I'm not sure how to find the form online, but arrive with it filled out and you'll be in good shape.