Bill Hicks puts it quite nicely

"It's a miracle, childbirth is a miracle." No it's not. No more than a miracle than eating food and a turd coming out of your ass. It's a chemical reaction, that's all it fucking is. If, you wanna know what a miracle is: raisin' a kid that doesn't talk in a movie theatre. Okay, there, there, there is a goddam miracle. It's not a miracle if every nine months any yin yang in the world can drop a litter of these mewling cabbages on our planet. And just in case you haven't seen the single mom statistics lately, the miracle is spreading like wild-fire. "Hallelujah!" Trailer parks and council flats all over the world just filling up with little miracles. Thunk, thunk, thunk, like frogs laying eggs. "Thunk, look at all my little miracles, thunk, filling up my trailer like a sardine can. Thunk. You know what would be a real miracle, if I could remember your daddy's name, aargh, thunk. I guess I'll have to call you Lorry Driver Junior. Thunk. That's all I remember about your daddy was his fuzzy little pot-belly riding on top of me shooting his caffeine ridden semen into my belly to produce my little water-headed miracle baby, urgh. There's your brother, Pizza Delivery Boy Junior."