Lilly proudly displayed her baby bump in a black-and-white Halston Heritage gown while posing for photos with her Ant-Man co-stars, and looked absolutely stunning in her Pedro Garcia black heels. But don’t expect her to tell you the gender. Lilly told ET on the red carpet that she intends on keeping the baby’s gender a surprise -- and that her pregnancy is her summer "plan" ("It trumps everything really.").
"I like the surprise. We know too much almost," a glowing Lilly admitted to ET's Nischelle Turner. "I went and got an ultrasound recently and it looked like a photograph, like, I could see my child's face!"
"I was like, 'I don't want to know!' It's too much too soon! I don't even know what the gender is, let alone what its facial structure looks like," the actress said.