Paranoid about stillbirth..

I'm extremely paranoid about stillbirth.. My cousin lost her baby girl that way and ever since my grandmother found out that I was pregnant, she mentions it constantly. I'm so freaked out. My baby has extremely active days where he's always moving and really lazy days like today where he barely moves at all. I've been worried sick all day because of he's been so still but it's not uncommon for him to be honest. I'm just terrified. I've came all this way and it still doesn't feel real. I'm so scared of losing my little guy.. 😞