Decreased fetal movement fear

I hate to think so negatively but sometimes I get really worried when I don't feel my baby move. I've spoken to my husband and he just don't understand bc he's not carrying her... these are things I worry about and I keep seeing stories where moms felt like something was wrong and there was. I have an appointment this coming Thursday so I will ask my OB is everything fine & what are things I should look out for in case the worse does happen... However, usually when I get scared eventually she starts moving and showing me she's fine ..

So ladies I just want to know what can ease my mind with these horrible thoughts? How can I calm myself?? I just want to deliver a healthy, happy baby . I'm 33+1 btw.