Matthew McConaughey, 38, has been open and enthusiastic about the news that his girlfriend, 24 year-old Brazilian model Camila Alves, is pregnant. He made the announcement on his blog, (link has automatic music) saying “yes, my girlfriend Camila and I made a baby together… it’s 3 months growin in her womb and all looks healthy and lively so far… we are stoked and wowed by this miracle of creation and this gift from God.”

Celebrity Baby Blog has an interview up with Matt and his Fool’s Gold co-star Kate Hudson talking parenthood with Entertainment Tonight. Matt revealed that Camila is about five months along and said that they aren’t going to find out the sex of the baby ahead of time. He said he overheard the doctor referring to their baby as “he” and that he had to work not to jump to conclusions about it. As for how he’s going to handle fatherhood, Matt said that he’s heard that “whatever plans you make, throw them out the window,” but that he’s “got the instincts for it.”

In an question and answer section in this week’s In Touch, Matt revealed more about how he feels about the upcoming baby, and you have to admire the guy. He’s gung ho about it, and says that having a baby makes him feel younger. He said he’s looking forward to every day, and that he’s “absolutely” going to be changing diapers. One thing that made me smile, though, is how he answers the question about how his life is going to change by saying the kid will fit right in. He’s in for a wild ride:

Do you feel more like a grown-up now that you have a baby on the way?
I actually feel younger. Even with Camilla just being pregnant now, parenthood has begun. The way I think about the future has already shifted. There’s a lot more “we” instead of just “me” and that feels good.

Do you expect your life will change much?
I think there are a lot of things you don’t change in your life when you have a child. The child has to come in and be a part of the life that you have…

Will you be a disciplinarian?
It’s hard to imagine myself saying things like, “I’m not going to explain it again,” or my all-time favorite, “You better get back in bed, get up on the other side of it, and get back in this kitchen with a new attitude!” I better get prepared.

What are you most looking forward to?
Every single day.

Will you be changing diapers?
Absolutely. I’ve been an uncle for a while, so I know a little bit about the art of diaper-changing. Once you get the hang of it, it’s a breeze.

[From In Touch, print edition, February 11, 2008]

McConaughey said he’s not going to stop doing stunts for his movies just because he’s a dad, and said again that he’s not making any grand plans and will rely on his instincts when the baby arrives.

I love the quote he gave about how “You better get back in bed and get up on the other side!” You can imagine his mom saying that, and it’s funny as anything. His mom recently wrote on his journal: “Drinking from my saucer, because my cup is indeed overflowing with news of this new baby!”

McConaughey has a reputation as a mellow, friendly guy who can have some wild parties when he’s inclined, but who doesn’t get in trouble and keeps himself in check with a lot of exercise. He is getting accolades for his new clean-cute look, with a shorter hairstyle and a shave, and people think that his upcoming fatherhood has influenced him to clean up his appearance. He’s about to see how much life really can change when a child enters the picture, and he seems more than happy to accept the challenge.

Matthew and Camila are shown at the Fool’s Gold premiere on 1/30/08, thanks to PRPhotos.