Baby gets first vaccines tomorrow and I'm feeling really nervous.

This is my first baby and I fully agree with vaccinations but right now I'm having second thoughts. I dont know what to do. I don't know what's right. I feel like with this subject there is just so much to it and it gets really complex and heated. I was recently reading about SIDS and vaccines and it is just petrifying to me. I know there is not enough to prove that claim but it just feels so scary to think about. I just want to cry right now. Doctors recommend vaccines and I support and feel it's best to choose what science has to say but I'm so afraid of losing my baby I just can't bare the thought of it. I feel like there is no real answer to my question if vaccines cause SIDS. There's too many things that go back and forth on it. And my head is just ready to explode right now thinking about the possibility of loosing my baby because of this decision within the next three days. I just feel so stressed about it