So scared of birth

Hey mommas, I'm 25 weeks and 6ish days, and preterm birth seems like a huge possibility for me. I'm so scared of being sick during birth, and the only time I only really hear about that happening is when it's a natural birth. I know it must happen in C-section as well (anesthesia or recovery surely), but I still don't hear of it as often. Any advice would be so helpful