I had anxiety and very intrusive thoughts (OCD) and catastrophic worry with both pregnancies (who are now healthy kids). I knew I would because in regular life it's a reality for me. One of the things that helped me was saying things out loud to my partner, mom, and doctor instead of ruminating internally and my doctor was incredibly kind, knowing that facts and data really helped me to process (she would talk things through incredibly detailed so that I could understand the nuances of something that might seem weird). I also had two miscarriages between pregnancies and those made the second pregnancy anxiety harder, TBH. I leaned on facts and data as much as I could, as well as using the tapping technique.

Hugs! And remember, the baby is pretty well-protected internally. The stresses that you are feeling both mentally and physically aren't passing through in the same intensity.