20 weeks-not a lot of movement

Heaven

Hi ladies, I’m hoping some of you can put my mind at ease as I am 20 weeks and 2 days today and haven’t felt much movement. I felt her kick on my right side on Saturday evening after eating supper but I haven’t felt her kick since then. If I lay still for awhile, I think I can feel her move but it’s hard to distinguish between movement and gas. I was already a bigger girl before getting pregnant. Any comments would be appreciated.