Fellow First Trimester-ers

Hello fellow new moms

My name is Amber and I learned 1 week ago I am pregnant. I broke the news to hubby yesterday and all while he reacted well and even bought something for the baby, he also commented last night that if I have a miscarriage we should take it as a sign we arent meant to be parents. I know that it often takes multiple tries, but he said he cannot have the rollercoaster of hope to be let down and brought up again. A week ago I probably would have agreed but now I'm getting used to the idea of adding to our family. So my question is, how do you keep your mind off of the possibility of miscarriage or chemical pregnancy? I don't have my first Dr apt until 9 weeks and I'm almost 6 now. Seems so far away and if for whatever reason between now and then, something happens, we will be devastated and I won't know how to tell him not will I know how to be okay with "not trying".