15 weeks worried

I have my appt in 2 days but I’m so worried. My last appt I was 11 weeks 3 days got an us and baby was healthy with strong heartbeat. At the time I was having severe nausea all day everyday. This stopped at 13 weeks. I’ve now had no symptoms at all for 2 Weeks. It’s now been a month since my last appt. I suffered a missed miscarriage at 11 weeks with last baby. The only sign was that I had no symptoms ever. I’m so anxious and worried that my symptoms disappeared and I’m making myself sick with worry. I’m so scared to go to my appointment.