Angelina Jolie and Brad Pitt are reportedly set to marry before autumn. The couple - who are rumored to be expecting twin boys - apparently want to tie the knot in time for the arrival of the babies later this year.

"Angie is expecting twins this fall, so it is making them feel a time crunch. They decided they'd both like to welcome their twin boys to the world as man and wife, which means the wedding has to happen fairly soon. They've both realized how much they want to be together," a source said.

Angelina, 36, and Brad, 48 - who already have children Maddox, 10, Pax, eight, Zahara, seven, Shiloh, five and three-year-old twins Knox and Vivienne - are said to have been through a rocky patch but finally came to the decision to wed after appearing together at last month's Oscars.

"They had an amazing time Oscar weekend, since then, they've been madly in love. The wedding was totally off: They were having so many arguments, but they've finally managed to bury their differences," another source said.

Meanwhile, a third source says Angelina is planning to keep the pregnancy quite for as long as possible: "It's not something she wants to officially announce but she's at a point where she is telling a select group of people. Angelina is really savoring every moment. She's having a tough time with morning sickness but says it's all worth it."