PTSD Trauma From Car Accident

So I’m currently 31 weeks pregnant with my first baby and today I got the call saying my fiancé got into a high speed head on collision. Thankfully he walked away from the crash with just bruises and cuts and is home resting. Now I feel like I can’t sleep cause I’ll have nightmares of almost losing my best friend and I can’t even stand being in a different room then him right now. Just having wicked anxiety and I know it’s not gonna go away. Now I feel like when he goes to leave the house again I’m just gonna break down and start panicking cause I’m gonna feel like I’ll get another call saying he got into an accident but didn’t make it out this time. I’m constantly just worrying now and i know this isn’t gonna go away😓 Any advice?.. Thinking I might have to go see a therapist for this at some point. I have anxiety/depression as it is but now this just made it 100x worse.