really getting nervous.

As the days get closer, I'm getting really nervous for labor.. This is my second pregnancy so of course I shouldn't be that nervous I went through it once. But with my first she was premature, I didn't have the choice to get the epidural because by the time I got there my contractions were 3-5 minutes apart.. I remember the contractions, they were painful kinda. I remember the feeling of having to poop and not being able too. then I remember when it was time to start pushing. I had a quick labor from what I remember, but I do remember it being painful.. I think. Now I'm having a baby boy next month, my bellys bigger and I keep hearing boys are typically bigger then girls when they are born.. So that kinda worries me because I know some moms rip during, kinda scares me, does anyone have any advice to make it less aniexty on me? because as the days get closer I worry more..