Reese Witherspoon and her talent-agent hubby Jim Toth have only been married for about a year, but they apparently didn’t waste any time starting a family — sources confirm the actress is pregnant.

The Oscar-winning star of ‘Walk the Line,’ who turns 36 on Thursday and has been seen in recent weeks sporting loose shirts and dresses, is apparently due this fall. She’s already mom to two children from her first marriage to actor Ryan Phillippe — daughter Ava, 12, and son Deacon, 8 — but had previously said she’d like to have more children.

An inside source said Witherspoon’s new husband “has always wanted kids” and “adores Ava and Deacon,” adding, “Jim and Reese are looking forward to having a bigger family at this point in life. They can take the time to enjoy the next stage and make sure the transition for all is easy and joyful.”