16 weeks 1 day // decreased fetal movement

So I am pregnant with my 2nd baby and I could feel flutters since 12 weeks but I started feeling actual fetal movement at 15 weeks and now I'm 16 weeks 1 day, and for the past few days I haven't felt anything.

I know it's normal to not feel EVERY movement but not feeling anything in a few days makes me paranoid especially when for a few weeks I've had this off feeling like something was wrong, so that doesn't really help either.

I go back to my ob in 3 days and I'm worried. Baby may totally be fine but I'm still worried