Kourtney Kardashian is pregnant… but just who is the baby daddy to 30-year-old Kourtney’s bun in the oven? She’s not telling.

Kourtney Kardashian is staying mum on the subject, as the father has not yet been identified, but Kardashian does dish with Ryan Seacrest in this video clip about her pregnancy.

Some are guessing that Kourtney Kardashian’s ex-boyfriend Scott Disick is the baby daddy, but Kourt wouldn’t confirm to E! if they were back together or not, teasing, “You’re going to have to see on the show.”

Kourtney and Khloe Take Miami premieres this Sunday on E!