Worrying about miscarriage

Amber • 🌹Mom of 3🌹Pregnant with 4th🌹Space Force wife🌹

I'm currently pregnant with baby 3. I have been pregnant 4times including this time. I have two children & had one miscarriage at 9weeks. It was so traumatic. I'm just so worried & stressed about having another. Anyone else worried too? I don't know how to calm my nerves and stress less. My husband says I need to relax. Easy for him to say. 😞