I worked in hospital before, the 內地入, not only 孕婦 really very very bad. Always, I called their families (e.g. husband, 99) to come to pay the fee. They say "is XXX own you, not me. If I really don't pay, so what..... You can call XXX to pay, but she /he is in China now. If she/he don't pay, you can 告, and put she/he in prison.