I'm not sure hun. I had pupps in the third trimester of my last pg and it was truly horrible so I feel for you! My rash was red lumps/spots that spread along my stretchmarks. The itching drove me insane. As hard as it is try not to itch it as it spreads the rash and can cause scarring. I found icing the area and aloe vera cream the only things that helped. If it is pupps I think it will only go away after you give birth so fingers crossed for you that it's not! It's probably worth getting it checked out at your drs to be on the safe side.