being on some Birth Control, preg, or uterin cancer, there are alot of reasons hormone levels are either up or down but none of them other than preg are normal call your doctor imediately...
It could be normal if a 15 year old misses her periods by 2 months, particularly if menstruation has only recently begun. Certain changes to lifestyle can bring about missed periods. If this is an ongoing occurrence, it would be wise to seek medical advice.
If the shot misses or causes only minor damage to vital parts of the brain, then yes it's possible.
Its sightly possible but unlikely.
Could be several causes: Clogged fuel filter. Clogged/dirty fuel injectors. Spark plugs need changing.
Hitting it on hard surfaces!
It is possible that she could be pregnant. She needs to take a pregnancy test if she misses her next period
It could however, it could simply mean he is bored, homesick and misses your company.
In my opinion it causes an Fight which is could be to kill a human.
It could be the relay
Could be a few things. Possible to be the CDI box or the Stator.
It is possible that craters could have hit the moon.
If you were writing a letter to 2 female, unmarried siblings, you could address the envelope "The Misses Smith"