Does this dress make me look fat?

PLEASE HELP!!!! 
I know I need a better bra and I could wear shape wear! And, I'm not pregnant!! I liked the dress in person and now looking at the photos I don't know what is happening with my belly and I think I look really fat I'm not sure if it's cause I'm not standing up straight!? 😰😖😱😩
I ordered it in white and now I'm stressing It'll look horrible!
Honest opinions please!!!! 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors