10w pp, onset of ppd?

I've had diagnosed anxiety and depression since I was a teenager, so when I got near the end of my pregnancy I started looking into pp support.

Baby girl was born and...I felt okay. A little heightened anxiety and a bit of intrusive thoughts, but I've been dealing with anxiety for a decade now so I have pretty good coping mechanisms. As for my depression, I actually felt better, like I was finally happy after years of clouds.

I'm 10w pp now, and for the past several days I've been feeling bad again, worse than before, depression-wise. Feeling useless and hopeless and 0 motivation for anything. I know several days of feeling down isn't necessarily a sign of long-term issues, but I just want to be careful because I've dealt with this before.

So what I'm wondering is can ppd show up this late? Or is it more likely my usual depression back and it just feels worse because I got a break? Or I dont know.