Am I feeling movement? Opinions please!

Brooke • Mommy to Nolan - 12/16, Due with #2 🎀 11/6/18.
I am 16 weeks 6 days, yay!  The past few days I have these semi-sharp throbs (best words to describe feeling?) in my lower abdomen.  It doesn't feel like gas, at all.  It's quick but strong enough for me to actually notice it.. Is this the quickening everyone is talking about?  Help!