The short answer is, he can't. The only way in which a man can incubate an embryo, and carry it to full term as a developing foetus, is if a fertilised ovum is placed within his abdominal cavity and allowed to root the placenta into the interior wall. This is an EXTREMELY DANGEROUS PROCEDURE, and carries a high risk of death for both parties. In such a circumstance, the unborn baby is not contained within a womb but is merely under the skin of the man's abdomen, making it extremely vulnerable and at risk of all manner of injuries, deficiencies and problems. No responsible medical or surgical team would ever contemplate the notion of undertaking the procedure of 'impregnating' a man. It has been done in the Far East a couple of times, but to universal condemnation and with considerable difficulties for the men involved. It is possible for men AND women to incubate an embryo in it's early stages of development, in many parts of the body and not just in their bellies- under the armpit, for example. However, it obviously can only grow to full term in an area that is big enough to accomodate a full-term foetus.
Thomas Beatie, the much-publicised American 'pregnant man', is not really a man, but a woman who has had a partial sex-change. 'He' had his breasts removed and a 'penis' created by plastic surgery, and also had hormone treatment to give him facial hair, but retained 'his' female reproductive organs. It was thus possible to make him pregnant by IVF using his wife's egg fertilised by donor sperm. The amount of hormone imbalances that his body will have had to cope with during all of this (during the sex-change and then again when he'd have had to have had female hormone treatment to enable him to carry the embryo) carries a risk of cancers in later life, and one wonders whether he'll feel it to have all been worth it in the long run.
The short answer is, he can't. The only way in which a man can incubate an embryo, and carry it to full term as a developing foetus, is if a fertilised ovum is placed within his abdominal cavity and allowed to root the placenta into the interior wall. This is an EXTREMELY DANGEROUS PROCEDURE, and carries a high risk of death for both parties. In such a circumstance, the unborn baby is not contained within a womb but is merely under the skin of the man's abdomen, making it extremely vulnerable and at risk of all manner of injuries, deficiencies and problems. No responsible medical or surgical team would ever contemplate the notion of undertaking the procedure of 'impregnating' a man. It has been done in the Far East a couple of times, but to universal condemnation and with considerable difficulties for the men involved. It is possible for men AND women to incubate an embryo in it's early stages of development, in many parts of the body and not just in their bellies- under the armpit, for example. However, it obviously can only grow to full term in an area that is big enough to accomodate a full-term foetus.
Thomas Beatie, the much-publicised American 'pregnant man', is not really a man, but a woman who has had a partial sex-change. 'He' had his breasts removed and a 'penis' created by plastic surgery, and also had hormone treatment to give him facial hair, but retained 'his' female reproductive organs. It was thus possible to make him pregnant by IVF using his wife's egg fertilised by donor sperm. The amount of hormone imbalances that his body will have had to cope with during all of this (during the sex-change and then again when he'd have had to have had female hormone treatment to enable him to carry the embryo) carries a risk of cancers in later life, and one wonders whether he'll feel it to have all been worth it in the long run.