Decreased Baby Movement??

I'm 26 weeks 5 days and the past 3 days I've felt less movement. I'll only feel kicks when I'm laying down after eating something sweet, and even then the kicks have decreased in strength and number. I used to feel her almost any time I stopped moving and now its barely any. Its starting to freak me out and I'm not sure if I should just call the doctor, even though I was there Friday and everything was good.