Was that him kicking??

Katie • Sporting Kansas City, Kansas City Royals, Kansas City Blues-- The City of Champions!
Okay ladies, I'm almost 18 weeks and the kiddo is now on my right side- thank you fetal dopplar! I just felt an ever so faint what I can describe "internal muscle twitch"; there were two and spaced a few seconds apart.  Can anyone related to this?  Oh, it just got real!