Aih, at 5 weeks pregnant memang badan boleh terasa panas-panas sebab hormone changes, but honestly sayang, kalau tak sure whether it's a fever or not, better check with your doctor or midwife just to be safe, pregnancy immune system lain, so best to confirm! A few of my mum friends also had similar feelings early on tapi they all checked just to rule out anything, and it made them feel better. Jangan worry, just get it checked out okay?