AceShowbiz -

Justin Timberlake and Jessica Biel are reportedly ready for a second baby. The couple, who welcomed their first child together Silas in April 2015, is planning to conceive another child through in vitro fertilization treatment (IVF), according to a source.

Justin and Jessica allegedly want a daughter. "They were struggling to get pregnant, so they've recently turned to in vitro fertilization," the source tells InTouch Weekly, "With IVF, you can choose the sex of your baby. After thinking about it for a few days, they made the decision to only implant female embryos."

"It's always been Justin's dream to have a little girl - he got really emotional when they told the doctor that's what they wanted," the source adds, "The idea of having a baby girl was melting his heart. He loves being a dad and having a daughter would complete their family."

Back in March, Jessica debunked second pregnancy rumors during an appearance on "The Ellen DeGeneres Show". "I don't even know what to say about these things. I feel like, 'Man, I thought I was doing good with my yoga practice.' I thought I was in the gym, but no. I have a gut apparently," the 34-year-old actress told Ellen DeGeneres, "I heard that and I called Justin. I was like, 'Are we [having another baby?] No. Oh, okay. Cool.' He usually knows more that I do about everything."