Hey
Yeah id recommend doing a preg test.
I must admit i have had the kicking feeling (and i have a 12w old DD) and i really freaked out thinking i was pregnant again. In my case though i think it was just muscle spasms, which is said to sometimes resemble the little fluttery kicks you get when you first feel bubs kicking. This is just my case though.
Id do the test to see if your preg or not. Suss it all out.