Jennifer Aniston is reportedly getting cold feet as she prepares to walk down the aisle to marry fiancé Justin Theroux, which has led many to believe is the reason why the wedding was postponed in the first place. 

According to a report, Aniston is scared her nuptials are destined to be ruined.

"Jen believes so many things are stacked against her that she worries their wedding seems to be cursed," a source said.

Reports have also indicated that there are a number of setbacks that have prevented the couple from tying the knot. One of the problems they have encountered is sick elderly relatives who are unable to fly to their first choice of location in Hawaii. 

The couple's second wedding destination of the Bel Air Mansion posed an issue after the building failed to be completed in time for the ceremony. 

Adding more fuel to the conflict is the guest list arrangement which includes Aniston's divorce parents--Nancy and John.

"She's just praying that the wedding goes ahead in August but, with drama unfolding at every opportunity, she's starting to panic that she'll have to postpone and be publicly humiliated again."

According to sources, Aniston has been planning most of the wedding by herself which has caused problems between the couple. 

"It's difficult because Jen's always taking calls from her wedding planner and answering questions which need Justin's input," a source said. 

The source also added that the 44-year-old actress has endured a lot of pressure to conceive a baby before she gets too old.

"Trying for a baby has put a strain on her relationship with Justin," the source said. "Jen's using numerous remedies in a bid to help her conceive, including cupping, acupuncture and taking a cocktail of Chinese herbs."

Tags: Jennifer Aniston Justin Theroux