9 weeks 3 days ate 3 hot dogs now I'm freaking out.

Well today my brother decided to visit and make hot dogs he boiled the weines. I had to leave to go somewhere as I left I noticed the stove was off and the weines were there steaming in the water. I came back home and once I served myself the weines were steaming a bit and we're still warm. I ate about three of them and didn't feel sick until, tonight I just started feeling nauseous and threw up. It's my first pregnancy and I'm scared that I might have gotten Listeria from the weines because I started throwing up. I'm scared for myself but more importantly I'm scared for my baby. Can someone help me please and maybe give me a piece of mind. Please I'm so scared.