Testing.

You know how people often comment that there should be a test for parents before they can get pregnant? Did you know there is one? It's a random test, much like drug testing in sports, with less pee and more humiliation. When you pass the test you get a baby. Some people don't even know they are being tested, they just think that they are lucky or that their birth control is infallible. However for the people who find out they're being tested it's a fun fun ride. Full of probes, crazy hormones and lots of exciting emotions.
Those being tested get to look forward to:
masturbation in a cup (more fun than you ever expected!)
medications to make your hormones rock you like nothing ever before
weird probe-y ultrasounds (they use bulk condoms on them, kinda funny)
saline ultrasounds (wherein your uterus becomes a water balloon)

I was chosen for testing, I sure hope I pass!