Lopez 'undergoes IVF'.Singer/actress JENNIFER LOPEZ is having Invitro Fertilisation (IVF) in a bid to have children with her husband MARC ANTHONY.The 37-year-old reportedly told other wannabe mothers at an IVF clinic at Cedars-Sinai Medical Center in Los Angeles that she dreams of having two kids.A fellow patient tells British newspaper The Sun, "Jennifer said she wanted to have two children. She said she'd recently started treatment and couldn't wait to have a family."Last month (AUG06), Lopez rubbished reports she is pregnant with her first child, after US pop star JESSE McCARTNEY told a Georgia radio station she is expecting.