Please help! So confused

I started miscarrying on the 15th October where I started spotting on and off til the 30th October where I started the full bleed and the miscarriage fully stopped on the 12th November.

I have been experiencing some dull cramps in my lower tummy every now and then. (Not much really). Every time I wake up in the morning at the moment I have been having a throbbing sensation in my boobs and they are still quite veiny, even in the nipple part too. I have been a little itchy down there (experienced this with two pregnancies) and had a thick white discharge in my pants yesterday (no smell. Also experienced this with last pregnancy) And have been feeling a tad bit sick every now and then since the other day. Nothing major.

I tested on the 29th November to make sure the miscarriage was complete. It looked negative. I kept it in my drawer and now it is showing a line but I know this is invalid now as it’s dried and old…

I tested today because of my symptoms I’ve stated and it is showing a faint pink line. Can see clearer in person, but it’s definitely there. May need to turn brightness up on phone to see the image.

What do people think?

Is this the old pregnancy and some tissue has retained? (Seeing as the old test is now showing a line????)

Could it be a new pregnancy. Me and my partner didn’t wait to have intercourse (still did with the bleeding) I know you should wait. Please don’t judge.

I’m going to get checked out, just wanted ideas in the meantime while I wait for my appt.