Think I just felt the baby move!

So I was standing at the till in the supermarket and had this feeling almost like bubbles on the right hand side of my lower stomach, it lasted about 5-8 seconds. I think this might have been the baby moving! I have never felt anything like this before. I am 15w1d I know it's early to feel movement but does this sound like for those mums who have experienced it? I am a first time mum and a bit unsure. Thanks