Marc Anthony and Jennifer Lopez Photo by: RD / Dziekan / Retna
J.Lo & Marc Anthony 'Figuring Out' Baby Duty | Jennifer Lopez, Marc Anthony
Jennifer Lopez is in "mommy mode" and loving it, husband Marc Anthony says.

"She's such an amazing mom and I'm so proud of her. She's such a gem to watch," singer Anthony told The Billy Bush Show Thursday.

The couple's "big and gorgeous" twins, Max and Emme, were born Feb. 22 by a Caesarean section, and are cared for by Lopez, 38, and hubbywithout the help of a nanny, Anthony, 39, revealed.

"It's just us, man. We're figuring it out and having a great time," he said. "She expects me to help and she makes no bones about it. I get the late shift. I get literally from 10 on because we don't have a nanny. It's just me and Jennifer figuring it out. From 10 p.m. to 8 [a.m.], that's my shift."

Anthony, who is touring the country for a campaign against childhood obesity, added that Lopez has three movies lined up and is eager to go back to work, but "the babies have been a blessing all the way around and she's just amazing."

See all of PEOPLE's recent babies covers here!

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