Joel Madden says there is no need to worry marriage to Nicole Richie is all part of the master plan. "Obviously, marriage is in our future," Madden told Ryan Seacrest on his KIIS-FM radio show Tuesday. "I don't know when or where or how, but right now our priority is our family and is the baby." The singer added: "That's all we've been thinking about. We are in love and are really happy." Richie, 25, and Madden, 28, first announced on Good Morning America in late July that they are to become parents. "Yes I am. We are. I'm almost four months," Richie told the show's Diane Sawyer. The couple has been dating since earlier this year. Meanwhile, the Good Charlotte frontman is not shy about his enthusiasm for impending fatherhood. "I'm excited. We are all really excited about it," he told Seacrest. "Its the best thing that has ever happened to us. It's awesome." Do they know if it is a boy or a girl? "No, we are waiting. We don't even know. So right now it's an it. Which sounds wrong. We call it the baby. When we talk to it, it's a you," Madden said. Madden revealed that the baby has already started kicking, and the couple is getting everything ready, including the nursery. "We've started it'," he said. "I already went to Target and got a stroller and a playpen." Brother Benji Madden chimed in to say how impressed he is with the couple: "They are doing really good. They always know what stage they are at."