Baby's first movements?

Lucy • Wed, Feb 22

I'm 17w5d, and so far haven't felt baby move (as far as I can tell..) I was just lying on the sofa and had my hand on my stomach - just under my belly button. I felt a slight movement against my hand and a "pop" sensation! Could this be baby as I have felt no fluttering or quickening feelings that they say you feel first?! 😬