Hilary Duff's Dog Lola "Doing Great" After Brain Surgery

Chihuahua was having "terrible seizures" and had a shunt put in her skull to drain fluid off her brain

Hilary Duff sure is going to be a good mom.

The 25-year-old singer-actress already dotes on her menagerie of animals as if they're her children!

Her beloved Chihuahua, Lola, recently underwent brain surgery. "[She] was having terrible seizures," Duff tweeted. "She had a shunt put in her scull2drain fluid off her brain & now is doing great."

As for the pregnant star's real baby-to-be? Duff tweeted that her future son is…

"Looking perfect!"

She told fans Thursday after a doctor's appointment that she was having a great day, "except for my ribs…which get a good solid kick every half hour!"

Hope Lola and the rest of Duff's pets are excited about having a new human brother soon!