A bride prepares for her wedding at Zhengzhou Institute of Aeronautical Industry Management in Zhengzhou, Henan province. Sha Zi / For China Daily

Some students get married because of unexpected pregnancies.

A 23-year-old woman in Chong-qing, who declined to give her name, is one example. She married her boyfriend, also her middle-school classmate, in November last year, when she was a senior student at a local university.

"We had been in love for years and had planned to register for marriage after I graduated from university in June this year," she says.

"We finally had to marry earlier because I conceived. We want the baby to have a complete family when he or she is born."

But she says she had felt scared about having a family. "I was not sure whether I was ready to give birth to and raise a baby."

"I was also worried about our finances. Questions of whether we were capable of supporting a family kept haunting me and made me nervous."

But her husband was running his own business and earning good money, which helped her to decide to get married.

Zhou from Baihe.com says finances play a key role in marriages.

She suggests undergraduates ensure they can feed themselves and run a family before deciding to marry.

"Otherwise, they may soon encounter a crisis in married life," she warns, adding that marriage is not only about love and romance but more about making a lasting promise to the partner and maintaining a family together.

"Most undergraduates rely totally on their parents before graduating and entering society. They are unable to afford a family of their own under such circumstances and are therefore unable to make real promises to their partners," Zhou says.