My mom was 20 when she had me in 1971. Her doctor decided to induce her because he was going on vacation. It was a very long labor (duh!) and they gave her a saddle block. Something went wrong with the block and it creeped up into her lungs... she could barely breathe. It also gave her a spinal headache that lasted a week. She was miserable.
4 years later with my sister, she thought she had plenty of time before going to the hospital. When she got to the hospital she said, "OK, I'll have that epidural now" the Dr. said "Uh, too late! It's time to push!".
Such a difference, if you wait until you are actually IN LABOR, to try to have a baby!