Is it normal to feel super fat before belly pops

Right now I haven't fully popped just getting... Bigger 
I know it's super beautiful to create life and that I am a vessel for that and I am excited but my body image is just so not good right now maybe it's also because I am doing this on my own with nobody to reassure me that I look beautiful and I feel totally guilty for feeling like this but it kinda is a shitty feeling!! Super excited for my baby but I want that super pop already instead of just looking fatter (18 weeks today) it's just as of the past few days that I feel so much huger