MOU, if the father wants the embryo, he should be able to pay for it to be extracted and transferred to the body of a women willing to gestate it, or into his own.
While the theoretical pregnancy rate may be low for certain birth control methods, the actual failure rates for some methods may be as high as 15%. Humans are fallible. Condoms break, pills can be forgotten or made ineffective by antibiotics, people under the influence of drugs, alcohol, or raging hormones may take chances.
Why would society demand that people who are irresponsible or simply unlucky become unwilling parents? That makes no sense.
MyOwnUsername wrote: And, once again, pregnancy is not terminal illness - most of my friends of female gender that got pregnant were fully active at least 7 months, so it's not like pregnant woman will be terribly affected with it.
You've got to be kidding. You would not make such an ignorant statement if you had personally experienced 3 months of morning sickness, backache, heartburn, stretch marks, being kicked in the stomach and bladder for two months, gestational diabetes, eclampsia, curtailment of many activities, lost time at work for prenatal checkups, labor, delivery and recovery, and a significant risk of having major abdominal surgery (16-25% of babies are delivered by C-section in the US) and several weeks off work to recover.
And yes, pregnancy CAN be a terminal illness. Fortunately medical science can save the lives of most women in the US. Women in third-world countries are not so lucky.
An embryo is not the "property" of the man who accidentally supplied the sperm, unless he has a legal agreement to that effect, such as a marriage license or other contract. IMO, an agreement stating the rights and responsibilities of both partners in case of an accidental pregnancy should be mandatory before anyone engaged in sexual intercourse. In the absence of such a document, it is the woman's decision whether or not she wishes to gestate the embryo. The father may not demand an abortion if it is against her principles, but should not be obligated to pay child support for a baby that he took reasonable precautions against fathering.