There is a contract that is signed for custody of the baby. when a baby is born so then surrogate has no right on the baby. This is the hardest feeling for a surrogate, she does it not for money but for someone happiness. People are opting for these process. Sometimes these are the last hope of the couples. Surrogacy creates links between people. I hope that people would not call it unethical. It is the best way to have babies.