Advice for Dads-to-Be from Alec Baldwin

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Your man might not read What to Expect, but maybe he'll listen to Alec Baldwin. The celebrity dad-to-be stopped by The Late Show with David Letterman recently to offer his take on the "crazy thrill-a-minute ride" that is life with a pregnant woman. He and his wife, Hilaria Thomas, are expecting their first child in summer 2013. (Baldwin already has a 17-year-old, Ireland, from a previous marriage).

As Baldwin explains to Letterman, "My wife, the pregnant woman, the hormonally-charged woman, if you will... It's a thrilling thing to observe.

What's Baldwin advice for other fathers-in-waiting? (You'd expect nothing less from Jack Donaghy!)

On Cravings...

Get ready to go the grocery—a lot.

"There's a container of pineapple that will probably serve four people. I put it on the counter [and] I go, 'If you want some pineapple, here it is,'" Baldwin tells Letterman about his return from the market after yet another run to stock up on fruit. "I go to the other room, I plug my phone in to charge it [and] sure enough I walk back—three quarters of the pineapple is gone and she's like, 'I was very hungry.'"

On Peeing…

When living with a pregnant woman, always be prepared for the call of nature.

"My wife will be announcing, 'I have to pee every five minutes, I can't believe it!' Then I'm like, 'Well, we have four bathrooms in the apartment, so you're covered. We got a bathroom in every quadrant of the house at the ready, clean and freshly papered and everything good to go,'" Baldwin jokes. "And then the next day she's like, 'I don't have to pee at all today. Something's wrong!' I'm getting whiplash here: pee, no pee…"

On Emotions...

Just know that it's only because your partner feels so comfortable around you that she's willing to be so "open" about how she's feeling. "Hilaria will be talking to her hair dresser and I'll hear her say, 'Oh, what time will I see you? 12 o'clock...Great, I cannot wait to see you!' Then she hangs up and says to me [crying], 'I don't feel good!'"

As Baldwin advises dads-to-be, moodiness is just a fact of pregnant life. "It's because [your partner] saves her most vulnerable... self for you," he tells Letterman.

On Empathy Pains...

And last lesson for dads from Mr. Baldwin? Show your partner some sympathy over all the physical changes she must endure. But just beware that feeling so in tune may mean you experience the aches and pains of pregnancy right along with her.

In another recent interview, with Extra, he described his own sympathy pains: "My boobs hurt. My boobs are killing me, so sore. My jeans don't fit. My pants, I can't buckle them."

Is he for real? Who knows?! But one thing is for sure, Baldwin is excited to be welcoming another baby.

"We can joke all about it, but it's honestly the most amazing moment," he tells Extra. "We are really sharing something special."