Mood swings & nonstop exhaustion

Hi mummies, on week 6 of my 2nd pregnancy here (i lost previous pregnancy few months ago) - just wondering if its normal feeling so weak, exhausted and tired most of the time? I feel like the hormones fucked with me big time, i lost my appetite which is a big deal and im so tired feeling exhausted most of the time. Can any experienced mums share me their pregnancy journey experience?