Depo- help

I’ve been on the Depo for about three years but recently took at 5-6 month break off of it (never got my period back) and am now back on it. I was meant to have gone in to get my last shot on the 10th of December but wasn’t able to and had unprotected sex last night. I know they usually give you a two week leniency but should I be taking the morning after pill just to be sure????

Help 😩