Terrified of SIDS

Sarah🍕 • 27. Married. Mommy to two boys. Artist. Atheist. Intactivist. Pro choice.
My friend just lost her son to SIDS yesterday. He was almost two months old. I feel terrible for her and can't imagine her pain. But now I'm terrified it will happen after I have my son. I'm 31 weeks and can't stop worrying about it. Am I alone or is this normal?