Alec and Hilaria Baldwin are expecting their fourth child together.

The couple - who already have Carmen, four, Rafael, two, and Leonardo, 13 months - announced the happy news on Hilaria's Instagram account on Friday (03.11.17).

Captioning a photo of their family, she wrote: ''Our Baldwinitos are getting a new teammate this spring. I'm gonna make them a special cake to tell them if it's a boy or a girl...I'll post it tomorrow midday. We are so excited! (sic)''

And it should come as no surprise to fans about the new baby as Hilaria previously revealed she wants another baby with Alec, who has 22-year-old daughter Ireland with Kim Basinger.

She said: ''Yes! I would totally do one more. For some reason right after I deliver a baby I want another one.

''It's kind of I feel like it's like going down this, like, crazy slide, and then you're, like, 'I want to go again.' Because it's just so invigorating and I had great experiences.''

Although Hilaria is considering having a baby ''one more time'', she is worried she could have twins.

She said: ''It's definitely something we would consider doing again. One more time. But, like, imagine if it were twins! Oh my God. Or triplets? No, that would not happen. Does not run in our family.''

When she had given birth to Leonardo, Hilaria lost her baby weight in less than a year by ''treating her body with care and respect''.

Sharing her journey, she wrote: ''People will ask me all the time what my regimen is after having a baby. I'll tell you: it's nothing crazy. It's about balance and consistency. People who have dinner with me will be surprised that I will often order pasta and dessert. They judgingly assume that I eat lettuce and drink water only.

''Definitely not. I have learned to become present to the act of eating, so I enjoy it the most, and don't eat more than is good for my body. I also will try to move daily and get in more intense (yet efficient) workouts 4-5 times a week. I basically treat my body with care and respect...this is why it goes back to close to what it was pre-babies (it will never be the same...and, as all parents know: well worth the sacrifice (sic)''