Britney Spears isn't letting pregnancy slow her down and is preparing to go back into the recording studio very soon to collaborate with husband Kevin Federline on a new project. Federline has been focusing on his music career for the past year and Spears is eager to lend a helping hand. She explains, "I'm so proud of Kevin. He's been working so hard on his own album since I got pregnant with PRESTON (their 9-month-old son). "I'm so lucky He's a doll; he's adorable." The TOXIC star also admits she "can't wait" to return to performing, saying, "but I really have to take my time and do it right and be safe. "Actually, not that safe. When you perform, you have to be dangerous!"