Pregnancy insecurity

Hi everyone! I’m currently pregnant with my 3rd and will be 19 weeks in just a few day. I already gained 10lbs (207) and feel swollen in my face! I’ve been very insecure with myself especially with all these changes and just want to lock myself in my house until labor! I’ve seen so many women who are further along that are just simply stunning. Has anyone ever felt like this? What are ways you make yourself feel better?