A single-parent support group says some women are being driven to abort their babies because they are scared of the Government's new hardline welfare laws.
Julie Whitehouse, of the Auckland Single Parents Trust, says other mothers are going "underground" and trying to hide their babies from authorities rather than go back to work one year after giving birth.
A new law that will stop the clock on work obligations for only a year when women have new babies while on welfare is due to come into force on July 30 for youth benefits and on October 1 for sole parents and other beneficiaries.
It will make sole parents look for work part-time when their youngest child turns 5 and fulltime when that child turns 14. If they have another baby while on welfare their obligations will be deferred for a year, but they will then have to look for part-time work if their youngest previous child is then 5 or over.
A welfare working group led by economist Paula Rebstock said last year the change was needed to deter "a small minority of parents having additional children to avoid work expectations".