Lack of baby movement. Normal ?

Hey ladies, I'm about 18.5 weeks pregnant (3rd pregnancy) but last pregnancy I made to full term was 12 years ago and my 2nd one was 6 years ago and ended at 10 weeks. So I only have one child and now pregnant with second

I'm not feeling much baby movements. I can't really tell or feel. It's weird. Could it be because of my extra hanging stomach skin ?

Or is this normal due to not having a baby a while ago ? Cuz they say 2nd pregnancy, you feel more movement and earlier through pregnancy

Please give me advice