Brad Pitt and Angelina Jolie might be staying quiet on the issue of whether a fuller-looking Angelina is pregnant, but they’re giving away some hints here and there. Reporters on the red carpet at the Santa Barbara film festival this weekend were instructed not to ask questions about Angelina’s rumored pregnancy. This week’s OK! Magazine says that little Shiloh Jolie-Pitt, who turns two on May 27, is moving to a new big girl room in the couple’s Malibu mansion, and that she leaving her nursery, which Brad and Angelina are redecorating in shades of yellow. OK! has enough specific details about the new nursery to make it seem like they do have a source and aren’t just making this up:

Angelina and Brad have been preparing for a second biological baby by moving Shiloh into another bedroom and redecorating the nursery. They tore down the current nursery in their multimillion-dollar Malibu mansion, which has been the room of 20-month-old daughter Shiloh. “Brad made floor plans to give Shiloh a bedroom with her own canopy bed,” a friend of the actor tells OK! According to an insider, “Brad drafted plans to change the nursery, which was a very modern girl’s room. They wanted a muted yellow neutral palette so they could have a blank slate for the next addition.” They moved all of Shiloh’s princess drawings, toys and powder pink curtains to another room closer to Maddox, Zahara and Pax. Shiloh is growing up, and they wanted to give her her own first “big girl” bed.

The freshly-painted nursery now houses a brand-new crib. A Jolie Pitt insider confirms, “They got a new crib, and Brad wants to completely change the nursery.”

[From OK! Magazine, print edition, February 11, 2008]

And contrary to the reports in the less reputable tabloid magazines that we love to devour, OK! doesn’t mention twins at all. They say that Brad and Angelina considered fertility drugs because this second pregnancy didn’t come as easily as the first, but that they decided to wait it out and were ultimately successful:

Shiloh’s birth was a piece of cake, but it took some old-fashioned practice to conceive their second natural-born baby. “Angelina was really upset that she couldn’t get pregnant,” a source close to the couple confides to OK! “She and Brad even discussed the possibility of fertility drugs, but they wanted to wait because they preferred not to have a multiple birth, and the changes of that were greater with fertility drugs.”

[From OK! Magazine, print edition, February 11, 2008]

Another detail that corroborates the “Angelina is Pregnant” rumor that is that Angelina is said to have ordered more of those maternity shirts that she wore all the time when she was pregnant with Shiloh.

OK! also says that Brad and Angelina want to have another girl to hang out with Shiloh before she gets too old to pal around with another sibling, but that Pax is hoping for a little brother.

I think the twins rumor originated with a post on paparazzi photo agency X17’s blog, which was picked up and spun into “invitro treatments to save marriage!” stories by a lot of the tabloids. The details on the fertility treatments were shaky, although it does seem likely that Angelina saw a nutritionist prior to getting pregnant as so many outlets have suggested.

She’s definitely looking pregnant, and we’ll have to see now how and when she choses to announce it. It is thought that she will make a decision to reveal her pregnancy with a high-paid exclusive interview and photo session with the proceeds going to charity. She made a $400,000 donation to Wyclef Jean’s Yele Haiti charity with the proceeds from her first pregnancy announcement. People bash Angelina for “pimping out her kids,” but she does good things with the money, and people want to see their pictures and read about them in the glossies.

Brad and Angelina are shown at the Santa Barbara Film Festival over the weekend, thanks to Splash, and the Screen Actors Guild awards on 1/27, thanks to PRPhotos.