Baby movements

💕

So I am 15 week 1 day with my 2nd baby and with my first I felt movement at 18 weeks, but last night I was sitting down and I moved to a different position and below my belly button I felt 3 quick jabs? It kind of felt like something bumped against my belly inside. I've also been feeling brief fluttering sometimes but not all the time.

Is it safe to assume its fetal movements? Is hard with every pregnancy you can feel movements earlier