What could be wrong if your swimming pool light malfunctions and turns off by itself then after awhile it sometimes turns on again?
Bad switch? Bad connection? Bad bulb? The sensor on the back of the fixture is most likely sensing that the light is overheating or you may have a short. Have a qualified pool tech trouble shoot the system. If the light is an older one then the best course is to replace it. Make sure that the system has a GFCI installed. Have that checked as well if one is already in place. If no GFCI then it is mandatory to install one no matter what the service company does - even if you do the work yourself - you must install a GFCI or replace the defective one. DO not delay this action - electricity and water do not mix well.
Hardware problems usually mean that the computer itself is having difficulties, such as physical damage to the devices within your desktop. Software problems are usually errors caused by malfunctions with programs that run on the computer and not the computer itself, such as a bug in programming or heavily fragmented files.
Since swimming is a form of exercise, it helps, but not all that much by itself. Good nutrition and supplements paired with swimming is a better way of preventing osteoporosis. Any form of weight lifting paired with swimming would also help since lifting puts more stress on your bones, which stimulates bone regrowth.
You cannot get pregnant from stray sperm in swimming pools or stray sperm in general. Sperm is very delicate and can be destroyed by water or sometimes even air, even bacteria in the vagina itself can kill sperm. Unless you use artificial insemination, a penis and a vagina together are necessary to make a baby.