Depends on what you call, "Safe". Physically stopping an ejaculation can result in some very painful swelling. (By the way, this procedure will not keep a girl from getting pregnant.)
because the water in your head balances out with the weight so you are safe
Because they were not safe, so the balance of the risk against the need was big
To prevent slipping, a sloped surface should have a roughened surface, one that provides ample friction. Smooth surfaces such as polished stone, metal, or wood are not as safe as gritty concrete, rough brick, or asphalt. In some cases, strips of sandpaper-like material are added to slopes or steps to make them safer to walk on.
If you live near a nuclear power plant you might be in danger if it exploded. But the engineers are taking immense precautions to prevent any faults that would cause a plant to explode so you're safe.
How is a nuclear power plant safe?
If you swallow your own semen, then no, you can't get anything new. It's quite safe. It's fairly safe, too, to swallow someone else's semen.
It is not safe.
As long as he has no STD's, it is quite safe to consume semen.
Yes it is safe as long as your partner is STD free.
The rifampin in the semen will not cause any problems, but their semen may not be safe to ingest. Rifampin is an antibiotic given for many reasons, including STD's. If the rifampin is being given for an STD then it would not be safe to ingest the semen, not because it has the rifampin in it, but because it may still have infectious particles in it.
no
Yes. It is safe if they are all free of STDs.
Yes it is safe. I do not advise doing that though. It is safe and you can do so if you wish. You cannot give yourself any infection from taking your own semen. Many males masturbate and swallow their own semen. Recent studies have found that consuming human semen reduces depression. You can find an article about that in the related links below.
Yes
Yes. The amounts that might possibly be found in his semen are at such trace concentrations it won't do a thing.
yes. your husbands semen is composed of a little bit of everything he takes in whether it be medicine, food, liquid and so on. Therefore, swallowing of semen is an inherently dangerous activity, as a result you should consider having him ejaculate on your face or inside your anus or vagina, however remember that some form of birth control should always be in place. if you feel you must receive his ejaculate in your mouth with the intention of swallowing his semen, the safest way to prevent his medicine from effecting you, the semen must be neutralized by your husbands own saliva. the best way to do this is to swap the semen from your mouth to his mouth, have him swish it around for at least ninety seconds then it will be safe for him to swap it back to your mouth, and you can then swallow it. the only other way to neutralize the semen and make it safe would be by having him ejaculate deep in your anus, then the antibodies there will make the semen safe, and you can allow the semen to slowly drip out onto some object, preferably his mouth, face, or penis them you can safely suck up the semen and swallow it. i hope that answers your question. if you need further advice do not be afraid to ask.
Of course it is. People swallow it all the time -.-