We’re quite sure that every woman who has ever had sex has wondered why her period may be late.  The most obvious reason, of course, is that you are pregnant.  But before you start shopping for strollers, remember that a woman’s body is affected by many things.  A few of these (in no particular order) are included below.  Have you had regular cycles or are you worried every month?  Tell us your stories in the comments section – sharing helps all of our readers. And here our our top reasons your period might be late.