• The 35-year-old expectant mother of three uploaded a photo of herself.
• Wearing an open dress that showed off her baby bulge beneath a long skirt.
• after a few fashion gaffes led to a lightbulb moment.

Blake Lively is offering her Instagram fans some creative maternity fashion advice. Wear both when the front of your dress won’t button and the back of your skirt won’t zip, advised Lively. Who says that two wrongs do not equal a right?

Lively wore a black dress with white polka dots over a black skirt in the image, each piece having a purpose. Ryan Reynolds and Blake Lively are expecting their fourth child, and Lively appears to be establishing her own fashion standards with a smile on her face and a pearl necklace to finish the look.

The former Gossip Girl star made her fourth pregnancy announcement public in September when she showed off her baby bump at the 10th Annual Forbes Power Women’s Summit. Reynolds, 46, is the actress’ husband. James, 8, Inez, 6, and Betty, 3, are all daughters of the couple, who wed in 2012.

In November, Reynolds said in an interview with Entertainment Tonight that their daughters are “ready” for having a new sibling. “I’m very excited,” he said in November.

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