Meghan Trainor shared some super exciting news today—she’s going to be a mama of two soon! She confirmed to PEOPLE and on Instagram that she’s currently pregnant with her second child with husband Daryl Sabara.

“What a blessing,” Trainor tells PEOPLE. “I’m just so grateful I can get pregnant. And I’m like, ‘I’m crushing it. This is amazing. This is my dreams.’ I’m halfway there—I want four kids!”

She and Sabara (best known for his role in “Spy Kids”) are already Mom and Dad to their son Riley, who was born in February 2021.

Related: Meghan Trainor says nurses implied her antidepressants may have caused her son’s NICU stay

“We try to tell him, ‘There’s a baby in the belly,’ but then he points to his belly now and is like, ‘Baby.’ And we’re like, ‘Oh no, it’s not in yours — it’s in Mama’s belly!'” Trainor says.

She also shared the news on Today, surprising Hoda and Savannah with the news in the BEST way.

She’s been keeping her burgeoning baby bump incognito with her favorite wardrobe piece, she says.

“Hoodies, babe! I wrote a smash that says, ‘Even with my hoodie on,'” she says, referencing the insane TikTok hit “Made You Look.”

“I only wear hoodies. And everyone’s like, ‘You’re not even showing, you’re so small.’ I’m like, ‘Well, you can’t see me!’ For real.”

Now that she’s four months into this pregnancy, she can already tell it’s much different than her first (as is the case with lots of moms). She says this pregnancy feels more “real” and she notices she has more noticeable symptoms the second time around.

Related: Meghan Trainor’s viral ‘expectation vs. reality’ TikTok is 100% accurate

“I got my symptoms late in my pregnancy with Riley,” Trainor tells PEOPLE. “I got them a right away with this baby. I got red perioral dermatitis all over my face — so that’s been fun with makeup — and popped early and was very nauseous. I was sick, my boobies were aching. This one was a ride. It was a rocky ride, but luckily it was during the holidays, so I could just chill and lay down. I pee every 20 minutes, and I’m fully out of breath just from talking. It’s great.”

Trainor has also written her first book, “Dear Future Mama,” which is set for publication in late April. In the book, she opens up about her pregnancy with Riley and motherhood overall.

“I’m an open book, and I love telling everybody everything about my grossness and all my truths,” Trainor explains. “When someone goes, ‘Oh my God, me too,’ then it makes me feel like I’m not alone, and I’m like, ‘I’m not weird, my body’s not different. It’s normal.'”