Stephen Lovekin, Andrew H. Walker, Chris Jackson/GettyJanuary Jones has remained mum about the identity of her baby's father, however Jason Sudeikis (top right) and director Matthew Vaughn (bottom right) have been speulated.
While the "Mad Men" actress, 33, has yet to reveal the identity of the baby's father, many bold-faced names have surfaced as possibilities. While some have guessed it could be an ex, others have speculated that Jones is keeping the name of her baby's daddy a secret because he is a married man.
Here is a run-down of those named so far:
Matthew Vaughn: The director of Jones' new flick, "X-Men: First Class," had a "very close" relationship with the actress on set, E! Online reported. Vaughn, who is married to former supermodel Claudia Schiffer, strongly denies he had an affair with Jones. However, according to E!, he "abruptly" left town at around the same time Jones made her surprise baby announcement in April even though he was tentatively scheduled to reside there another month.
In other eyebrow-raising behavior, Vaughn said he was unable to attend a screening of the new film because of "severe" tonsillitis, but E! claims he was quite talkative during "X-Men" interviews on the same day.
Jason Sudeikis: The "Saturday Night Live" funnyman was one of the last people to have publicly dated Jones. After first being linked in July, distance played a big part in the couple's split this past January. When a Washington Post reporter recently asked Sudeikis if he had any comment about Jones' recent baby news, he became tongue-tied, saying, "I'd rather ? yes but no."
Bobby Flay: The flame-haired grillmaster may seem like a long shot, but he and Jones have been linked in the past. Though he is married to actress Stephanie March, he was mysteriously connected to Jones' car crash last summer when he was the first person she called for help and went to the scene of the accident to see if she was okay.
Adrien Brody: If you blinked, you may have missed the short-lived fling between the actor and the blond bombshell. But last year, the two were spotted spending time together at a Memorial Day party in Malibu and on a romantic date in New York.
Jeremy Piven: After being spotted leaving a Golden Globes party arm-in-arm with Jones last year, the "Entourage" star popped up on her radar again in January, when the unlikely duo was seen hanging out on the sidelines of the Saints-Vikings NFC Championship game in New Orleans. But whatever romantic spark existed between the two seemed to already be fizzling as E! reported that they "didn't seem to be paying much attention to each other."
Jones put her bump on display during a Lakers game on May 2 and at the 'X-Men' premiere Wednesday night. (Noel Vasquez, Stephen Lovekin/Getty)
Despite the controversy, Jones seems to be managing her pregnancy fairly well.
Showing off her growing belly in a Preen dress Wednesday night at the New York premiere of "X-Men," Jones gushed about her enjoyable experience with a baby on board.
"I feel great. I haven't had any weird physical side effects," she told People.com. "I feel pretty lucky so far."
Not only has she avoided having any physical discomforts or uncontrollable mood swings, Jones has also missed out on having odd cravings.
"Everybody is asking that. I haven't yet," she said. "It's a bummer. I wish I had something weird to tell."
How about we start with the name of the father first?