When is it ok to have a bump?

Lydia
So background.  In my past I've struggled with body image and minor eating disorder things. I'm pretty hypersensitive to the size and shape of my body.  I'm 9w 5d pregnant today, and I'm starting to notice that I'm bigger.  My mom told me she didn't show at all during her first pregnancy until she was like 4 months in.  So I'm wondering if I'm weird and showing early, or if I'm just getting fat.