Movement concerns

I just reached 20 weeks today and for the past few days, my babies movements have slowed down. Yesterday I felt her a few times. I normally feel her at night and I couldn’t get her to move at all last night. I still haven’t felt her move all day today. I’m starting to worry but I don’t know how consistent movement should be at this point. I’m not a first time mom but I was not as concerned or worried during my first pregnancy because it was before I experienced loss. Should I call my doctor or just wait to see if she picks up moving again?