Feeling movement at 15 weeks

Today I'm exactly 15 weeks and I'm pretty sure I felt movement today. I've been feeling flutters since right before 14 weeks but only when I'm lying down. But just now I felt the baby rolling. It felt like much more than a flutter and it wasn't in the right spot for gas. I'm just so excited I'm a ftm and I've been so anxious to feel definite movement!