Post baby weight!

So I gained about 40 lbs during pregnancy. I had an emergency c section.  I weighed 170 when I gave birth. After I weight 158.  I was discouraged cause I thought I'd lose more that 12 lbs after. But no. It's been a week and I'm now at 153. I can't even fit in my winter coat? I'm feeling so down about it. How has everyone's weight loss journey been going?  Is it normal to only lose 12 lbs? I just feel like it isn't.  Ughhhh.  #depressed #bodyimageissues