So I wanna call my doctor because my sons barely been moving since last night although he has moved…

So I wanna call my doctor because my sons barely been moving since last night although he has moved its nowhere near compared to his normal. I know in the belly baby's have quieter days just like when they're born. I also know the further along you are the less they move because it's tighter In their. I am due in 8 days so I know he has little room. But usually my son is all over the place everyday and all day. He's a very very active baby beyond active actually. I'm not sure if I'm over worrying or if I should just try to drink OJ in a little a see if that gets him moving a lot. What do you mommies think ?