i am in need of some advice ..

i am a first time mom, and it took my husband & i over 2 years to finally conceive; and i still can’t believe it happened!!! but... as excited as i am, in the back of my head i can’t help but be worried of a miscarriage.. i don’t even want to type the word out because it is so scary... but what is some advice or ways to help calm my thoughts of it? i don’t constantly worry about it, but it does still linger in my head at times..