Jennifer Lopez "doesn't know" if she will have any more children. The 39-year-old actress - who welcomed twins Max and Emme, her first children with husband Marc Anthony, into the world in February - is unsure whether she will extend her family any further. She said: "When I was pregnant, I told Marc, 'I love doing things for you. If I'm not cooking, then I'm picking out a shirt. But this is the first time in my life where I'm just going to be a little bit selfish. Sponsored Links: "I don't know if I'm going to have kids again, so I want it to be a beautiful experience. I don't want to have any drama. I want to just be smiling every day.' " The 'Wedding Planner' actress also described the first moment she knew she was expecting. She added to America's Elle magazine: "I was sitting down doing hair and make-up and I felt a flutter. The weirdest little flourish. My make-up artist said, 'What's the matter?' I didn't say anything, but in my head, I was like, I have life inside me!"