Girls, it's already 19 weeks but I still don't feel the baby's movemen…

Girls, it's already 19 weeks but I still don't feel the baby's movements (sometimes I think I do, but it's like bubbles! Can you please tell me what sensations or how did you know about the first movement? When I apply my hands to my belly, I don't feel anything, they say he/she is kicking, but I don't have that at all.