The fear just won't leave

Hello ladies, I lost a baby last year at 18 weeks pregnant. I'm pregnant again and due sometime in October. We are going for our dating ultrasound in a couple hours and instead of being excited and happy, I'm terrified that we'll get bad news. I've got so much anxiety that I couldn't sleep last night and the fear of bad news just won't leave me. I wish I could just fast forward through this scary first trimester- once I start feeling the baby move I'll feel so much better, but I'm just besides myself right now.