Is this quickening?

Erin
I'm right at 15w5d. This morning I felt some weird "pings", kind of sharp and uncomfortable, but not painful, about 5 times in the same spot within a few minutes. Toward the left side, low in my belly, just above my pubic bone. Didn't feel like the "popcorn popping" or fluttering sensation people describe, but didn't feel like indigestion either!