Yes. If you are athletic and slim, it can be delayed.
0-5 days are normal, if longer, see your doctor.
A period delayed by a few days or weeks is suggestive of pregnancy.
It depends how old you are.
13 days to 17 days
i am 10 delayed and still negative result. i have head ache and some unclear discharge... i am pregnant
Not for another 13 days! :) according to her period tracker
Neptune has 13 known moons and an orbital period of about 60190 Earth days.
no
Your period should not be delayed more than a few days, but it is not unheard of either. You should be examined by your doctor, just in case though.
Most periods last around 3 to 7 days. If yours is 13, that is not dramatically different. Every girl is different. Therefore, every period is different. A period of 13 days would be normal if the same person always have it for 13 days. If the person usually has a 4 day period, for example, then has a 13 day period, that isn't normal. Remember, if this is one of the first few periods, it is supposed to be irregular Once a regular period starts, then it should stay regular.
Gestation ranges from 97 - 181 days, with an average of about 135 days. Sometimes a delayed gestation period apparently takes place, varying from 1.5 - 4.0 months in duration. (not exact wording) (From animalinfo.com)