“My wonder woman. #whyimarch,” the Vinyl star, 32, captioned the image of her beautiful baby girl.
Last month, the Drinking Buddies actress shared a shot using her breast pump.
In November, the Meadowland actress posted a photo babywearing her newborn.
Wilde’s and fiancé, SNL alum Jason Sudeikis, welcomed their daughter on Oct. 11.
They are also parents to 2-year-old son Otis.