Weird belly shape

Nicole • Mommy to ID girls. Harper & Paige born 12/28/15
I'm 16w3d and my belly has 2 seprate bumps. Baby a is lower, below my belly button in a ball, and baby b is just at my bellybutton to my right in a ball and a little more obvious. Has anyone experienced this? Am I always going to have a lumpy uneven bump?!? The visual is pretty funny.