If she's ovulating, she can get pregnant. Lot's of babies have been born even though someone pulled out early and they thought they were safe. All it takes is one good swimmer.
If the semen of the male comes in contact with the vagina of a female, there is always a chance of pregnancy.
Most 14 year-old guys might be worried about the amount they ejaculate. At this age, you become a man and you can get various amounts of semen, which is normal for teenage boys. But typically, by the time he is 14 a boy will shoot his semen rather than dribble, as he's no longer a little boy. I would say he can shoot around 8 squirts, sometimes less and sometimes more.
The first is the concentration of sperm cells in semen - the higher the concentration better the possibility of conception. The second is the percentage of normal sperm cells - the lesser the number of abnormal sperm cells, the better the possibility of conception.
At 13-years-old a boy may not yet be producing any semen. Puberty ranges are different for every boy so it is not possible to be precise for individuals. It can be anywhere from nothing to full adult production !
In a one ejaculation there could be anywhere in between 40-600 million sperm. Averaging half a teaspoon. Assuming you are asking about human semen, production ends at death, so the amount of semen production for any one man could be quite large. An average ejaculation is said to produce about 2 ml of semen. Semen is a combination of sperm and fluids produced in the prostate and urinary tract to move the sperm into the vagina. Sperm production can decrease with age due to lessening of testosterone, and the amount of fluids can also deteriorate with age. The prostate starts having problems. I really have no idea how someone came up with the "average" volume of ejaculate. The idea of "sampling" a sufficiently large number of men ejaculating for scientific purposes boggles my mind.
Viagra will have no effect on the semen and chances of getting pregnant
no
somewhere around 0%
There are very less chances of you getting pregnant. But never the less they are there. Sperms do not survive in plane water. They may survive is isotonic saline.
It is impossible to become pregnant by swallowing semen.
Semen is sperm, and all it needs to do to get a girl pregnant is be fresh and be introduced to the vagina. So yes. changes are just as much as if you would have ejaculated in the vagina. There are millions and millions of sperm a droplet of sperm and there only needs to be one to fertilize and egg and get a girl pregnant.
Think of it this way. If a male has recently ejaculated, the semen comes out. But not all of it. If he were to have sex with a female sometime later, the "pre-cum" would contain the semen that was left behind from the previous ejaculation. The chances of getting pregnant from this is not as high as the whole ejaculation. But why take the risk?
It's quite small, but there is a chance of getting pregnant that way.
Yes you can. Chances are not as high as to is you were not on your menstrual cycle but, you still can.
Seeing as it's capable of getting them pregnant, probably so.
If you are a boy who is a virgin, it doesn't make any difference in your chances of getting a girl pregnant. If you are old enough to ejaculate (if you have semen come out when you masturbate of have a wet dream) you can get a girl pregnant. And you don't have to put it in her, either. A little sperm from the tip of your penis on the outside of her vagina could get her pregnant. If you are a virgin, the best thing for you to do is stay that way until you find the right girl and marry her.
No. Lots of semen will still pass through the cervix, so you can still get pregnant.