Charlie Sheen (42) and Brooke Mueller (30) have announced Brooke is pregnant. Charlie, who is the highest paid prime-time comedy TV star, said:

"Brooke and I are thrilled! She’s the best stepmom Sam (4), Lola (3), and Cassandra (23) could ever hope for. Seeing her love and affection with those three, I know she’ll be an amazing mom. Unless I bat 100 percent, perhaps a boy awaits us."

Sheen already has three daughters, Sam, and Lola, with ex-wife Denise Richards, and Cassandra, with ex-girlfriend Paula Profitt. A friend said:

"Brooke found out for sure on Friday and is thrilled to death. Brooke loves Charlie very much and has wanted a baby for some time."

Good for Charlie and Brooke. Maybe this time Charlie will find what Denise Richards never wants him to find … happiness.

Melanie Chisholm, aka Melanie C or Sporty Spice, announced she is pregnant with her first child, and the daddy is her boyfriend Thomas Starr. Mel said in a statement on her web site:

“Well, I can now announce that Tom and I are expecting a baby and we are very happy. As I’m sure you’ll understand we needed time to wait for results and tell our families. Thank you for all your kindness, good wishes and support (even if it was based on speculation!). You all know how much I value my privacy so I’m sure I can rely on you to respect that, particularly at this time. I will be taking it easy but am also excited to start writing for the fifth album. I’ll need some time off to be a mum but, before you know it, I’ll be back.”

Congrats!

Jennifer Garner confirmed to Tony Potts from Access Hollywood that she is in fact pregnant with her second child with Ben Affleck. Jennifer said:

“It always makes me laugh when people say ‘Is she?’ ‘Isn’t she?’ It’s like eventually you will know, so just chill out for a minute.”

Jennifer says Violet prepared her for baby number 2:

“Yeah, been through it. It’s all good, it’s great. I’m really excited.”

Congratulations.

Retired porn queen Jenna Jameson is pregnant with the baby of her boyfriend, UFC champ Tito Ortiz. A source said:

"She had a bunch of meetings and things planned for Fashion Week, including meetings for her own line, but she’s postponed everything. She’s completely thrilled, this is something she’s wanted for a very long time."

Jameson miscarried during her marriage to Jay Grdina, whom she divorced in 2006. She also once failed with in vitro. If she’s tried in vitro fertilization before, I wonder if it worked this time, and she’s could be having twins like so many other celebrities.

A rep for Lisa Marie Presley confirmed she is pregnant with twins. These will be the first children she has had with husband Michael Lockwood. Lisa is the latest celebrity to have twins, which only fuels more speculation that these celebrities are getting fertility help to insure they have twins.