It's official- I need new clothes

Help requested for this one. I'm nearly 15 weeks pregnant. Once I hit about 13, my upper gut started protruding much more. I can't fit into any of my old pants, but I also am struggling with my old underwear. The only comfortable underwear for me is hipsters that go past my bellybutton. I was about a 26~ pants size pre-pregnancy, so I'm struggling to find new underwear, number one, but pants that aren't sweatpants, number two. Any help or links would be appreciated.