Such a traumatic experience

Yesterday i was on my way to work when someone in a pick up truck rammed into me. They intentionally sped up and rear ended me. How do i know? Because he was riding my butt and then sped up and hit me. After he pulled up beside me and started cussing me out and calling me names. I told him i was calling the cops and he sped off. I am 7 1/2 months pregnant. I had to go to the doctors and they told me i have started to dilate and have contractions. I️ don’t think they are ever going to find him and i have never been so shook in my life.