Hey ladies! I actually found a picture from the same ultrasound that I forgot to upload of the little one. I think it might be an easier to see nub. I'm not too certain. The ultrasound technician had looked in the area, but hadn't to described to me what parts are what. So far it's BOY- 4, GIRL- 6.
https://i1154.photobucket.com/albums/p524/dorothyjoyperez/Baby%20Perez/8BFFFAEF-451E-4956-9EE0-8D5F4DF5DDC6-1598-000000F635E9729E.jpg