Jessica gushed about Silas, "He's wonderful. He's just a joy. It's an amazing, amazing experience."
She added, "[It's] incredibly hard, the hardest job in the world, and I've never been more thankful and grateful to my own mother. Oh, my gosh, I'm going to call her right after this actually and just thank her. What you have to do for your kid — it's an amazing responsibility and the biggest joy ever."
Jessica revealed she is getting plenty of help from husband Justin Timberlake. She revealed, "He is doin' it all. He is in there, deep."
Earlier in the week, Biel raved about Timberlake on "Good Morning America," saying, "Well, he supports everything that I do and that's why I think he's a wonderful partner."
Aside from taking care of her family, Jessica has been busy educating women about reproductive issues with the use of hilarious PSAs.
Biel shared, "We don't want women's reproductive health issues to be hidden under stigma or taboos anymore. And how [better] to reach all demographics? Can we please laugh about this crazy stuff that happens to us?"