Fetal movement, second baby

Hi! This is my second baby, my first one will be 3 in may. I am currently 20 weeks and 4 days. Some days I think I feel her move, more like the “quickening” type feels, almost just like gas bubbles. So I’m not sure if it is gas bubbles or her. Haha but reading other people’s posts, and seeing how big some people’s belly’s are, kind of worries me she isn’t growing on track? Our anatomy scan is coming up but I’m so worried now!

Has anyone else not felt a ton of strong movements at week 20 with your second? I always thought you were supposed to feel a lot earlier with your second. Kind of worried now 🙃🥲