Feeling baby move!!

Kayla
I'm a bigger women and I haven't felt the baby move a lot or not sure at all. It's been 4 years since I had another baby and with my son I was 18w & 6d and I was able to make out them when I went for the ultrasound. I'm 18w & 5d now with my 2nd. Idk if just bc I'm bigger now and baby has more room why I can't make them out or what.