Fearful of dying during childbirth....

I have this extreme fear of dying during childbirth. I have this fear I will deliver my baby boy in 10 weeks but moments after his birth I will end up dying. I’m not sure if I should mention it to my obgyn or not. But it is a true fear of mine that leaves me shaking for some reason. I don’t know why I’m so scared of dying during and or after birth but I am. Anyone have any advice or tips or just words of wisdom?