Jennifer Garner recently stirred speculations she may be pregnant with ex-husband Ben Affleck's fourth child after she was spotted with a suspicious tummy bump. The actress stepped out wearing a maternity top that gave the illusion of a baby bump.

Garner was spotted wearing a white billowy top while on a casual stroll in Los Angeles on Monday. The actress didn't help squash the pregnancy rumors since the loose maternity-style top gave the illusion of a baby bump, as seen in this photo shared by Daily Mail.

Adding to the pregnancy speculations is the pair of loose-fitting jeans and flat sandals she wore with the white cotton top. According to Daily Mail, Jennifer may be concealing a bigger tummy underneath her jeans.

Garner was also spotted wearing another loose top when she was photographed talking to a friend. The photo shared by the site shows Jen in another breezy blouse and slightly heeled comfortable sandals.

Another photo of the actress with Ben and their son shows Jen looking rather big on the abdomen side. The knitted cotton sweater she wore with her skirt gave away a slight indication of a baby bump.

It's been over three months since Ben and Jen announced their divorce on June 30. However, OK! Magazine's report suggests the ex-couple may have had sexual intercourse prior or after their split since it claimed the actress is carrying Ben's child.

A source told the publication that Garner and Affleck are not just spending more time together so they can work on their marriage. But they're supposedly also looking ways to call off the divorce since they are having a baby.

"Something is definitely going on as Jen keeps saying how exhausted she is. The only other time she's experienced that kind of fatigue were in the early stages of her pregnancies," the source told OK! Magazine.

Ben and Jen have been spotted hanging out together even after they announced their divorce. The ex-couple maintained a united front in front of their three children, Violet, 9, Seraphina, 6 and Samuel, 3, during trips to the Farmers' Market and even in attending mass.

The family was spotted heading to mass together on Sunday in Los Angeles. However, there was no PDA involved with the ex-couple. A source told Entertainment Weekly that Jen and Ben remained cordial with one another, with Ben being "protective" and "helpful" to Jen. As to whether the ex-couple are expecting their fourth child is still a rumour until otherwise confirmed by their representatives.