“Babies come out of vaginas,” I thought. “Babies come out of vaginas. Oh, God, babies come out of vaginas.”

Somehow, I suppressed my hysterics and returned to class, mute and unable to comprehend a single word from the hippie.

I studied my classmates, who managed to neatly represent several Portland stereotypes, years before the TV show “Portlandia” made our weirdness accessible to the masses.

We had some awesome tattoos in that room, I remember. We had an interracial lesbian couple in the class. We had a developmentally disabled couple in the class. We had a couple in their late teens or early 20s who appeared, already, to hate each other.

But I remember Spring and Randy best. (Those were not really their names.)

Spring was the most miserable pregnant woman I had ever seen, with a belly so massive that when she entered the room she drew a gasp from the other pregnant women. Randy, her sidekick and life mate, looked like a drummer in a metal cover band. He asked a lot of good questions, Randy. Spring didn’t talk much.

We left class that night lugging a binder full of homework. In the car, I explained to my husband why I’d flipped out. My pristine vagina was about to be blown to smithereens. He patted my hand supportively, but his face went ashen at the words “pristine,” “vagina,” “blown” and “smithereens.”

A few days later I visited my obstetrician. She felt my abdomen, remarking that the baby hadn’t turned head down yet.

The gear in my brain that had been stripped during my itty-bitty nervous breakdown clicked back into place.

“Does this mean I get to have a C-section?”

“Get to?” she asked.

“Have to, I mean,” I corrected myself. Mustn’t appear too eager.

Not necessarily, she said. There’s plenty of time left for him to turn. I acted reassured, then immediately called my husband.

“The baby’s breech!” I crowed. “My vagina is safe!”

That night, I read dutifully from the childbirth education class binder and my stack of labor and delivery guides, which were chockablock with juicy tidbits about the Ring of Fire and pooping on the delivery table. I stared at the diagram of a cervix dilated to 10 centimeters. And then, just before I switched off the light, I held my belly and whispered to it.

“Stay breech,” I pleaded. “For God’s sake, stay breech.”

Women are not supposed to want C-sections. We are expected to dread them, and, when they’re necessary, grieve them. About one-third of all babies born in the U.S. right now are delivered by C-section, and the percentage of births by cesarean delivery rose nearly 60 percent from 1996 through 2009, according to the Centers for Disease Control and Prevention’s National Center for Health Statistics.

During my pregnancy I worked as a public health reporter for a newspaper, and so I understood why the increase in C-sections alarms many. They can be riskier for the mother and the baby. It takes weeks to heal from one. They can impede breast-feeding and bonding.

But I was so afraid that I pushed all of that aside.

Because I knew it made me look weak, and possibly crazy, I told only a few girlfriends that I was hoping to have a C-section. They usually responded tenderly, the way girlfriends do, something on the order of, “Are you nuts? Don’t you think a C-section will hurt, too?”

I kept up with our weekly childbirth education classes, gawking at Spring, who, as she entered the class each evening, seemed propelled by nothing more than rage over her increasingly dire predicament. Each week at the class dinner break, she and Randy would suck down a cheeseburger and fries from the hospital cafeteria. I gawked at that, too.

Randy, an exceptionally engaged apprentice labor coach, peppered the hippie with questions, really drilling down during the class where we covered birth interventions.

“I think I speak for everyone in this room when I say we’d like to avoid an episiotomy,” Randy said, inquiring earnestly about the efficacy of applying essential oils to the perineum.

We all looked quietly down at our binders. We knew — everyone knew — that a beast grew inside Spring’s womb, and that, when it clawed its way out, Spring would need, at minimum, an episiotomy. Randy better invest in a Chevy with a bad-ass Hemi, ‘cause he was gonna need it to tow that critter out of Spring.

At least once during every class I’d dissolve into the same fit of giggles that felled me on the first day. Anything could trigger it, but the birth films, with their syrupy background music accompanying the mother’s cries of agony, really slayed me. It got to where many of our classmates avoided making eye contact with me, the resident lunatic. Of course, that could have had something to do with the noxious gas, which had not exactly let up. There I sat in class each week, laughing and farting, laughing and farting.

Several weeks in, the interracial lesbian couple told the hippie that, to their dismay, their baby was stuck in the breech position. What could they do to budge him? The hippie suggested acupuncture, chiropractic manipulation or a procedure called an inversion. Emboldened, I spoke up.

“My baby is breech, too,” I said. “But I think I’m just going to go ahead and get a C-section.”

There. I’d said it. The dirty word. The C-word.

The hippie shook her head and launched into a litany of the drawbacks and potential complications of a C-section. I tuned her out. This baby was not blasting out of me. No, siree.

Through it all, my son obligingly stayed head up. My doctor suggested I try lying upside down or getting on my hands and knees because it might get him to flip. Sure, I’d tell her, then go home and stay as upright as possible. I even slept sitting up.

Just before my due date, my husband and I attended an eight-hour baby care and breast-feeding boot camp, hosted by two women in their 50s who had 12 children between them. Expect labor and delivery to take hours with your first baby, one of the women said, but a lot less time with the next one.

“It’s like your vagina has pleats, and that first baby just squishes them all flat,” the teacher guffawed.

My stomach lurched. This was not funny at all.

“That’s it,” I told my husband. “We’re out of here. I’m done.”

And, just like that, we left. Two more classes remained in our Childbirth Comprehensive Package, but we skipped them. The hippie and Spring and Randy and the gang would just have to push on without us. I’d reached my childbirth education limit.

A few weeks later, my son was born. A nurse hooked me up to an I.V., an anesthesiologist jammed my spine with a massive needle, another nurse strapped my arms down and two doctors cut me open while discussing Hillary Clinton’s chances against Barack Obama.

“This is a weird way to have a baby,” I muttered under my breath to my husband. “A really weird way to have a baby.”

Part of me will probably always wonder if I could have avoided the C-section and gotten my baby to make a U-turn if I’d stood on my head or let my obstetrician push on my belly. Would I have been tough enough to withstand a vaginal delivery? Women are built for this, aren’t we?

Recovering from the C-section hurt. A lot. Like, for six weeks. My girlfriends were right. I was nuts.

But more than that, I remember what I felt the moment I saw my son. I had a name now for what had scared me, really scared me, about becoming a mother. I’d put all my energy into worrying about my son’s birthday, when it’s every day after that matters.

I felt a deep ache in my gut, and my throat tightened, and I knew it.

This love.

It might hurt sometimes.