12 Weeks 1 Day and I swear I felt something

Today I was laying on couch and below my belly button I felt little light jabs. It definitely did not feel like gas and for about 10 minutes I would randomly feel it. Not a flutter like they say, but a tiny little tap within the same area. Ive already had one child and this Im really thin which might make it easier to feel which I heard makes it easier to feel. Anyone else swear they feel something at this stage?