Bfp on first response and digital?

I'm almost 5 weeks postpartum my doctor cleared me a week ago.

And I did have intercourse even before.

I tested today because I felt weird and off and I got a yes on digital and a bfp clearly on the pink dye line test .

New pregnancy or left over hormones ?

I'm going to test again Friday and see if it's still postive, if so I guess I'll have to call the OB. (How embarrassing lol)