Photograph by Pixplanete / PR Photos.

US Magazine is reporting that Angelina Jolie and Brad Pitt conceived their newborn twins, Knox and Vivienne, via in vitro fertilization. Usually, people resort to IVF when they’re having difficulty conceiving, and they’ve tried every other fertility treatment (because it’s so expensive, as you’ll see below). Brad and Ange, however, resorted to the technology because they wanted to conceive quickly:

“They conceived through in vitro fertilization,” a well-placed source within their camp tells Us. “They both desperately wanted more babies soon.”

The chance of having fraternal twins at Angelina’s age (33) naturally is under 1 percent; with in vitro, the chances are 25 percent. Says Dr. Arthur Wisot of L.A.’s Reproductive Medical Group (who did not treat the couple), “We live in an era of reproductive freedom, so anybody can do anything they want within legal limits.”

The actress chose the procedure (which can cost around $12,000 a pop) so “she wouldn’t have to deal with the stress of trying to get pregnant,” the source tells Us. “She could just knock it out.”

As with many things this couple does, this seems CRAZY to me! I don’t even know where to start. I mean, there’s nothing wrong with it, really — and who are we to judge. But, what’s the rush when you have 10 BEELLION children already, and when ANY COUNTRY IN THE WORLD will give you their orphans???

Come to think of it, maybe the rush had to do with Ange’s career. She only has a wee pocket of time to be unfilmable — and her career is on FIAH!

Was she scheduling in pregnancy between movie contracts?

This way, she can pop them out, get skinny again, and get back to work. On her OWN time. How very modern…. I sooooo just figured it out. Friggin’ ROCKET SCIENCE! Heh.