FIRST PHOTO -- Ryan Phillippe's Alleged Daughter

22-year-old actress Alexis Knapp just sent out the first photo of her baby girl -- Ryan Phillippe's alleged daughter.

Though Phillippe (left) never publicly announced that he was the father, he did accompany Knapp to doctor's appointments and was at the hospital on July 6 for the birth of the little girl -- named Kailani.

Though the little lady has no father listed on her birth certificate, her full name declares Phillippe -- Kailani Merizalde Phillippe Knapp.

Her momma Tweeted with the pic: "I do declare you to be the prettiiiest lil girl in the whole wide world."

What do you think -- does she look like Ryan??

Either way, we commend Knapp for stepping up to the plate and being a good mom at a young age!