She was unhappy that her boyfriend broke up with her and wanted him back.
She decided to register a marriage using his name and wanted to change the name of her son's father on the birth certificate to his.
The woman, now 32 and a finance assistant, was then married but not living with her husband. She is not named as the courts have asked that her son not be identified.
She came to know her boyfriend and got into a relationship with him in 2010. During this time, she gave birth to a boy and her husband was stated as the boy's father in the birth certificate. She obtained a divorce the following year.
Some time in 2012, the boyfriend suspected the boy was not his, and broke up with her.
She then committed two offences of conspiracy with Mr Matthew Yeo Chia Loong. She admitted to abetting Mr Yeo, 32, to pose as her 31-year-old ex-boyfriend to deceive a licensed solemniser into signing the certificate of marriage on Oct 25, 2012.
She had also abetted him to falsely declare before a commissioner for oaths from the Re- gistry of Marriages that he was her former boyfriend to register the marriage.
Yesterday, she was jailed for four weeks for the two offences.
Deputy Public Prosecutor Chew Xin Ying said the accused went on with her plan to register the marriage between herself and her ex-boyfriend when she knew that he did not and would not consent to marrying her. She had obtained his identity card without his knowledge.
She then asked Mr Yeo to help her impersonate her ex-boyfriend, and he agreed.
Both went to the Registry Of Marriage (ROM) on Oct 25, 2012. Mr Yeo forged the signature of her ex-boyfriend and obtained the marriage certificate.
The woman and Mr Yeo then proceeded to Din Tai Fung at I12 Katong to meet the marriage solemniser. After the solemniser checked their identity card numbers, they said their vows, exchanged rings and signed on the certificate.
ROM has confirmed that a Family Court order has to be obtained to void the marriage as the man's identity was misused to register a marriage.
The ex-boyfriend reported her to the police on Nov 7, 2012 after the woman sent him a photo of the marriage certificate containing his and her names.
Defence lawyer Diana Ngiam said her client was suffering from acute stress after her boyfriend ended their relationship.
She said her client is very sorry. She could have been jailed for up to three years and fined on each charge.