Sakit pinggang di 7 minggu memang boleh jadi normal sebab perubahan hormonal dan badan prepare for pregnancy, tapi since ni first time you're experiencing it with this pregnancy, better check dengan doctor just to be safe! A few of my mum friends juga ada yang sakit pinggang early on, mostly sebab they started relaxing their posture sikit-sikit already, tapi ada jugak yang turned out nothing serious pun. Jangan risau sangat, tapi jangan delay the check-up either, better to ask your gynae directly apa yang going on.