No movement..

I’m almost 22 weeks and I haven’t really felt my daughter move at all. This is my second pregnancy and I’m starting to feel anxious about it. At my anatomy scan they told me my placenta is on the bottom (not covering my cervix thank goodness) but I thought maybe this could have something to do with it? I have a fetal heart beat monitor and have no problem finding her strong heart beat so I know she is in there but I just want to feel her! I go to my dr next week so I’ll talk to her about it but I was wondering if anyone else can ease my worries...