It’s time once again to congratulate those celebrities entering into parenthood:

• Amy Poehler: Even though Seth Meyers said she was busy having a baby, it turns out SNL‘s Amy Poeher was already a new mom come Saturday night. Poehler and her husband, actor Will Arnett, welcomed their first child just hours before last weekend’s broadcast. The baby boy, named Archie, weighed in at 8 pounds, 1 ounce.

• Campbell Brown: It turns out news anchors have been just as busy as politicians lately. Earlier this week, CNN’s Campbell Brown revealed on The Daily Show that she is expecting her second child. Campbell, who is married to Fox News analyst Dan Senor, just welcomed a son ten months ago.
• Jo Dee Messina: The country singer has a lot to be thankful for these days. Messina, who recently celebrated her one-year anniversary with husband Chris Deffenbaugh, just announced that she is pregnant with her first child. Although she is right now in her third trimester, Jo Dee currently has plans to participate in a 5-mile run on Thanksgiving Day. (And I thought pregnancies were all about being fat and happy.)
• Annabeth Gish: The Brotherhood star - who will always be known by me as the girl from Mystic Pizza - also gave birth to a son last Saturday. Enzo, marks the second child for Gish and husband Wade Allen. Their first child, named Cash, was born almost 2 years ago.
• Dave Grohl: The Foo Fighters musician will soon be stepping further away from his Nirvana years. Grohl, who became a first-time father back in 2006, is now set to become a dad once again. Dave and his wife, Jordyn, have been married since 2003.
• Charlie Sheen: Although it was previously announced that Sheen and his (third? fourth?) wife were expecting, we just recently learned that the couple will be having twins. (I feel like there should a Two and a Half Men-related joke in their somewhere.) Charlie already has three other children from previous relationships.

• Alyson Hannigan: The How I Met Your Mother star and her husband, actor Alexis Denisof, have just announced that they are expecting. This will be the first child for the Buffy the Vampire Slayer vets. The two have been married since 2003.
• Gillian Anderson: On October 15, the X-Files star said hello to her third child. The newborn, named Felix, is the second son for the actress and her boyfriend, Mark Griffiths. Anderson also has a 14-year-old daughter from a previous marriage.
• Trista Rehn: The Bachelorette and her reality show hubby, Ryan Sutter, are now gearing up for Baby #2. Their first son, who was conceived after years of trying, just celebrated Birthday #1 back in July.
• Lil Wayne: Just days after talking about fatherhood on the BET Hip-Hop Awards, the 26-year-old welcomed the birth of his very first son. Yesterday, the rapper told a radio station that he was more than an observer during the delivery…he was also a participant. “I delivered him. I held the left leg the whole time. It was nasty, very nasty, but it was wonderful.” Wayne also has an 8-year-old daughter from a previous relationship.
• Caroline Rhea: The former talk show host and her boyfriend, Costaki Economopoulos, became first-time parents this week. The baby girl, who weighed in at 8 pounds and 15 ounces, was named Ava Rhea. The 44-year-old mom joked that her daughter was purposely given a short name since “her last name is the alphabet.”
• Kevin Costner: Country music isn’t the only thing Costner has going on these days. The Swing Vote actor recently announced that he will soon be a father for the fifth time. Kevin and his wife Christine already have one son together. The 53-year-old also has three other children from a previous marriage.