Fetty Wap's come a long way in just four months -- from denying he even fathered a child with Masika to totally proud papa cradling his little girl in a doctor's office.
Fetty and Masika were together for baby Khari's scheduled one-week doctor's appointment on Tuesday. Check out the video ... Fetty couldn't look happier.
We're told the checkup went great because Khari is in perfect health. Also doing really well are Fetty and Masika .... the two are embracing co-parenting, and it shows.