Rainbow Baby Anxiety

My husband and I have lost a singleton and twins. With them, we didn't announce - no one ever knew about their short lives, and I beat myself up for it. I told myself that my rainbow baby would be celebrated, no matter what the outcome. We finally announced today at 20 weeks (It's painfully apparent that I'm pregnant, and it was just time to do it lol). Ever since, I've been SO anxious. I know I wanted to celebrate this baby's life, but I can't stop worrying about of we jinxed it or not. He's kicking me as I'm typing, and I'm still worried his little heart isn't beating. I'm so irrational. Has anyone else gone through this?