Aiyoo jangan stress yourself lagi, mama! Please go to the clinic or klinik as soon as possible to do your scan, 8 weeks ni memang kena confirm awal-awal where everything is okay. Back pain boleh normal during pregnancy, tapi dengan your worry tu, better get it checked out to put your mind at ease. Jangan tunggu lagi, go this week if you can! One of my friends had similar worries and scan je terus hilang half her stress. You'll feel so much better once doctor confirm. Take care!