You have to hand it to Jamie Lynn Spears - not many 16-year-old girls would try and take the heat off their messed-up older sisters by getting themselves pregnant at a ridiculously young age.

But that's just the kind of socially-conscientious girl Jamie Lynn Spears is. Now that her older sister Britney Spears is being heralded by many as the world's most famous bad mother, Jamie Lynn wants to have a go, too - so she's announced to the world via OK! magazine that she's 12 weeks pregnant with a baby fathered by her long-term boyfriend Casey Aldridge. News of Jamie Lynn Spears' pregnancy might seem like the Spears family has now reached critical mass when it comes to sexual irresponsibility, but you haven't seen anything yet - the cover of next week's Us Weekly consists of a close-up photo of baby Sean Preston's face alongside the quote "Dude! I Totally Knocked Up 15 Thai Sluts Last Week!"

Well, you could literally knock us down with a feather at the moment because Jennifer Lopez - the very obviously pregnant pop star with a fashion designer who last week confirmed her pregnancy - has announced that she's pregnant.

Sorry, we're still trying to get over this shocking Jennifer Lopez pregnancy bombshell because it's genuinely come right out of the blue. All we've had to go on is Jennifer Lopez persistently assuming coyness every time someone mentions motherhood or babies in front of her, performing tours around the world with a belly that's been steadily growing in size because of the baby growing inside it and clearly being undeniably pregnant. And now it turns out that Jennifer Lopez is pregnant? That's literally the most surprising thing we've experienced all day, with the exception of every single thing we've seen, heard, thought or smelled, obviously.

Bless little Christina Aguilera. Half the size of a soggy lollipop stick, it's been blindingly apparent to the entire world that she's been pregnant for quite some time now - and yet she hasn't revealed her pregnancy to the world at all.

At least not until now. Christina Aguilera has decided to officially confirm her pregnancy to the world for the very first time, letting slip to Glamour magazine that her baby is due early on in the new year. It's good news all round, really - Christina Aguilera gets to congratulate herself for keeping the pregnancy a secret for so long, the public gets to breathe a sigh of relief because it knows Aguilera's bulging gut isn't a giant ovarian cyst and all local hospitals have a few months' notice to soundproof their maternity wards - after all, if that's how Christina Aguilera screams when she's singing a song about a man made of candy, imagine what she'll sound like when a giant-skulled baby crawls through her vagina.