Scared to TTC

I want a baby. I do. I've dreamed forever of being a mom. Growing up in school everytime it was asked what I wanted to be when I grew up 100% of the time it was "a mommy" well now I'm 21 and got married this year.. and I'm scared to death. I hate doctors, I am a huge baby about needles.. how am I supposed to go to a doctors every month/week?? How am I supposed to get blood tests done?? I feel like I'm 100% ready for the "after" part of the baby. I know I don't know everything I need to know yet.. but I'm confident I would be a good mom.. it's just the whole "pregnancy" part I'm horrified of. I don't want to adopt. I want so bad to carry my own child. has anyone went through this and ended up being okay? I know it's irrational and slightly childish to have a fear of a doctor but I do and I can't help it.