Hi all. I'm 16+5 on my first pregnancy and this morning I felt some small spasms inside at (more or less) the level of my belly button but on the left (I was lying on my left side). They were quite fast, then stopped after a few seconds. Could those be first movements? I've been waiting for bubbles popping (I don't know what flutters are) but still no clue how and when should feel something.