Because Ben Affleck and Jennifer Garner's divorce is not yet final, sources are rooting on the possibility that the two would actually reconcile.

The actress is rumored to be pregnant last month as the couple continues to live under the same roof and shared moments including the actor's 44th birthday.

But the pregnancy rumors mellowed last week after the "Miracles in Heaven" actress was seen stepping out from a gym exposing toned legs in a pair of black leggings. The actress was seen several times in tight gym apparel amid pregnancy talks and never seem to be affected by it.

No baby bump can be spotted contrary to what has been reported last month after she was seen in loose-fitted clothes.

Since their divorce last year, Ben and Jen remained amicable exes with their three kids--Violet, 10, Seraphina, 7, and Samuel, 4 in their Atlanta home. During the Batman actor's 44th birthday, the whole family visited Montana's Yellowstone Club for the celebration.

"There was a cake and they did the usual stuff: hiking and playing outside. They wanted to be together as a family," a source said.

The source said the actor seemed happy on this year's birthday, which he spent with his family doing activities like hiking, biking and swimming.

The insider, however, stressed that the ex-couple's bond did not go beyond the boundaries of being friendly exes.

"They didn't sleep in the same room. And they are not getting back together," the source added.

Based on the new rule of the California Supreme Court, Ben Affleck and Jennifer Garner cannot be considered officially separated as ex-spouse's spouses "must live in separate residences in order for their earnings and accumulations to be their separate property."

Ben Affleck and Jennifer Garner officially announced their separation the day after their 10th anniversary during the summer last year.