You definitely have to be completely comfortable to have a homebirth.
But when you study, read, and research you'll learn it's safer and healthier statistically for you and your baby to give birth outside of a hospital and away from a doctor.
I'd urge you to interview midwives for fun, for free and read read read. I love Gentle Birth Choices by Barbara Haper, Thinking Woman's Guide to a Better Birth by Henci Goer, & Spiritual Midwifery by Ina May Gaskin--just for the birth stories.
A doula may be a happy option as well. When it comes length of labor and making it to a hospital, 30 minutes is doable, generally, if need be.
My 2nd labor was 8 hours (first was 14). I had plenty of time to get to the Birth Center both times!