Itchy/Welts/Hives During TWW

Hi! This might be a long shot but last Friday which would have been 4dpo I started with hives all on my arms, ankles, hands, face. My first thought was the downy beads we had just started using and it was the first day I wore clothes from that load which my husband said he sprinkled too much in. The hives blew up my fingers, and one side of my lip. I went to urgent care and they prescribed me a steroid as well as antihistamines. Fast forward to today (9DPO) and I still have red skin under my clothes, wherever I scratch or put pressure on, it welts up and throbs. I am SO uncomfortable. Everything I read said they won’t do anything for it until it lasts past 6 weeks. Has anyone had this during their TWW? Due to rise in progesterone? I just got a faint positive pregnancy test today so now I’m thinking it’s hormone fluctuations causing it. UGH idk what to do.