erections are caused by a parasympathetic reaction which increases blood flow to your sexual organ. Yes it is very common to get erections at random times, especially at the ages you would still be in school. This is not something that can be controlled, so do not stress about it. If it becomes a problem, I would recommend wearing tighter underwear and slightly looser pants so that it can be easily concealed. :)
yeah, its normal. it just means that your penis stretches a lot when you have an erection
It is not normal.
yea completely normal
yes totally
Sterility means the person can not have childrenImpotency means the person is unable to have a satisfactory intercourse.Sterile person can have a normal erection and normal intercourse
Yes, it is completely normal.
yes its normal
yes the penis should point either forward or up. It depends on how strong the erection is. The more excited and stimulated you are the harder it will get. Not all erections point upwards so it is normal for you.
Nope, Your screwed.. (: Have fun without an erection.. :P
Yes
if you had an erection then its normal its called puberty
Is it normal to get a erection from Margret fatcher. No.