Early baby movements

Hey guys! How early did you start to feel movements? This is baby #2 for me, and with my last one I didn't feel anything til around 10-12 weeks, but the last couple nights I keep feeling a like ball in my lower stomach move, and it pushes out against my hand when it happens. Completely different but the same feeling as with my first. Now, I am also very small, only 5'3 and weighing 98 pounds. With my daughter I was around 120, so I did weigh more. What do you guys think? Is it baby moving already?

Edit: I forgot to say how far along I am now, I'm only 8w5d, which is why I'm confused