Experiencing a case of pre-marital jitters or worried about tying the knot? Well, you might want to listen up.

A recent study shows that when women have doubts before their wedding, their worries are often a warning sign of trouble.

The first scientific study to test whether doubts about getting married are more likely to lead to an unhappy marriage and divorce, shows that pre-wedding uncertainty (especially among women) predicts higher divorce rates and less marital satisfaction years later.

"People think everybody has pre-marital doubts and you don't have to worry about them," said Justin Lavner, lead author of the study from UCLA.

"Newlywed wives who had doubts about getting married before their wedding were two-and-a-half times more likely to divorce four years later than wives without these doubts.

"Among couples still married after four years, husbands and wives with doubts were significantly less satisfied with their marriage than those without."

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  • QUESTION: Which singer said that her wedding plans were "moving a little too fast" before she called off the wedding completely?

    A) Jennifer Lopez B) Christina Aguilera C) Kelly Rowland D) Aretha Franklin

  • Aretha Franklin

    Just 20 days after singer Aretha Franklin <a href="http://www.people.com/people/article/0,,20557913,00.html" target="_hplink">announced</a> that she planned to marry friend William "Willie" Wilkerson, <a href="http://www.people.com/people/article/0,,20563887,00.html" target="_hplink">she called the entire thing off</a>. Franklin, who got engaged in January 2012, released a statement a couple of weeks later: "Will and I have decided we were moving a little too fast, and there were a number of things that had not been thought through thoroughly. There will be no wedding at this time."

  • QUESTION: Which actress broke off her engagement with actor Kiefer Sutherland and ran away with his friend, Jason Patric?

    A) Gwyneth Paltrow B) Drew Barrymore C) Julia Roberts D) Jennifer Lopez

  • Julia Roberts

    Believe it or not, actress Julia Roberts <a href="http://www.people.com/people/archive/article/0,,20115436,00.html" target="_hplink">was once engaged</a> to actor Kiefer Sutherland -- but only briefly. Roberts, who was 23-years-old at the time, backed out of the engagement <a href="http://www.glamourmagazine.co.uk/celebrity/celebrity-galleries/2012/05/celebrity-broken-engagements#!image-number=3" target="_hplink">just three days</a> before the lavish June 1991 wedding. The actress was <a href="http://www.people.com/people/archive/article/0,,20115436,00.html" target="_hplink">later seen</a> in Dublin, Ireland, with actor Jason Patric -- with no engagement ring in sight.

  • QUESTION: Which star called it quits with Brad Pitt after dating him for two-and-a-half years?

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  • Gwyneth Paltrow

    Before Brad Pitt and Angelina Jolie became Brangelina, there was Gwyneth Paltrow. Pitt and Paltrow <a href="http://www.people.com/people/archive/article/0,,20122540,00.html" target="_hplink">dated for two-and-a-half years</a> and were engaged for six months before the actress decided that she wasn't ready for marriage in 1997, <a href="http://www.glamourmagazine.co.uk/celebrity/celebrity-galleries/2012/05/celebrity-broken-engagements#!image-number=1" target="_hplink"> according to <em>Glamour.</em>

  • QUESTION: Which blonde called off her nuptials just a few days before the wedding?

    A) Crystal Harris B) Jessica Simpson C) Britney Spears D) Scarlett Johansson

  • Crystal Harris

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"You know yourself, your partner and your relationship better than anybody else does; if you're feeling nervous about it, pay attention to that," he added. "It's worth exploring what you're nervous about."

The psychologists studied 464 newlywed spouses in Los Angeles within the first few months of marriage and conducted follow-up surveys with the couples every six months for four years.

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At the time of marriage, the average age of the husbands was 27 and the average age of the wives was 25.

When asked, "Were you ever uncertain or hesitant about getting married?" at their initial interview, 47% of husbands and 38% of wives said yes. Yet while women were less likely than men to have doubts, their doubts were more meaningful in predicting trouble after the wedding, the researchers found.

Among women, 19% of those who reported pre-wedding doubts were divorced four years later, compared with 8% of those who did not report having doubts. For husbands, 14% who reported pre-marital doubts were divorced four years later, compared with 9% who did not report having doubts.

Doubt proved to be a decisive factor, regardless of how satisfied the spouses were with their relationships when interviewed, whether their parents were divorced, whether the couple lived together before the wedding and how difficult their engagement was.

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In 36% of couples, the husband and wife had no doubts about getting married. Of those couples, 6% got divorced within four years. When only the husband had doubts, 10% of the couples got divorced. When only the wife had doubts, 18% of couples got divorced. When both partners had doubts, 20% of the couples got divorced.

"What this tells us," Lavner said, "is that when women have doubts before their wedding, these should not be lightly dismissed. Do not assume your doubts will just go away or that love is enough to overpower your concerns. There's no evidence that problems in a marriage just go away and get better. If anything, problems are more likely to escalate."

Thomas Bradbury, a UCLA psychology professor and co-author of the study, compared the situation to finding something disturbing on your skin that you hadn't noticed before.

"If you see something unusual on your skin, should you ignore it and go to the beach, or see a doctor? Be smart and don't ignore it — and don't ignore your doubts either," said Bradbury, who co-directs the Relationship Institute at UCLA. "Have a conversation and see how it goes. Do you think the doubts will go away when you have a mortgage and two kids? Don't count on that."

The psychologists are not advising women with doubts to necessarily end the relationship, they say.

"Talk about it and try to work through it," Bradbury said. "You hope that the big issues have been addressed before the wedding."

See also:

Number Of Weddings Boom After 40 Years Of Decline, Reports Finds

Breaking Wedding Tradition: Most Couples Don't Expect Bride's Parents To Pay

US Dating Manual Explains Why You're Not Married.. Yet

The research is published in the online version of the Journal of Family Psychology, published by the American Psychological Association, and will appear in an upcoming print edition.