is it normal to want to leave my pregnant girlfriend

The correct term for you is 'Ignorant Selfish DICKHEAD' because that's what your acting like right now. You obviously haven't gone w/her to her doc appt.s or they'd have warned you about the narcissistic bitch that may take the place of your loving sweetheart. If you didn't love her in the first place, why the FUCK didn't you use condom, or at least pull out. I can't believe you're being called a 'good dad' for thinking you can make it better by signing a check every month and wishing them the best of luck. Goes to show how low standards are these days. Meantime, REAL dads like SoloDad & me go unnoticed. The good news is, you can fix this. Get your head out of your ass & keep taking care of YOUR BABY'S MOTHER. By the way, plan on her 'not being herself' for up to six months after the kid pops out! Esp. W/out your support. Give it at least a year or TWO after birth. if she's still an unbearable bitch, then start weighing your options. You're in a LIFETIME commitment now, two years ain't shit. Life isn't a fucking computer program. Shit doesn't happen instantly, it takes awhile. Talk to docs or CHAPLAINS. Trust me, they help a lot, & chaplains are free. Remember, you don't have to be a dickhead. Ignorance & selfishness are curable. DON'T BE A DICKHEAD! Good luck, "Dad".