To dream of menstruation or being on your period represents a problem or unpleasant life situation that requires your full attention. Something you have to attend to, or a problem that can't be ignored. Feeling uncomfortable doing anything except taking care of a problem you have. Unpleasant moment of taking time off to deal with personal issues. Not feeling good noticing you have to care about something you don't want to.
Negatively, dreaming menstruation could be a sign that you are too preoccupied with dealing with problem to the point of ignoring something good happening in your life. Ignoring opportunities because you want your problem perfectly taken care of first. Feeling jealousy that you have to deal with a problem with nobody else does. Feeling that you have lose or that losing is normal. Not enjoying being single, unemployed, or broke while trying your best to resolve it.
To dream of getting your period and not being happy about it may reflect frustration with needing to take time to deal with problems when you are eager make progress. Feeling held back by frustrating delays. Not getting to enjoy yourself when it may feel important to do so. Not feeling good about yourself when other people are. Feelings of being unattractive or unexciting.
To dream of your period ending represents feelings that requiring attentive care or undivided attention to a particular waking life situation is no longer important. Feeling "in the clear" or that problem requiring a timeout is over. Feeling more confident, free, or beautiful than usual.
To dream of your period being late may reflect feelings of surprise that an unpleasant moment or disappointment that you expected isn't occurring. To dream of your period being late, but eventually occurring may reflect a temporary state of optimism that something better or different was going to happen in your life. Negatively, it may be a sign that you are deluding yourself with optimism.
To dream of period blood dripping on your head may represent feelings of total embarrassment that you have to think about an irresponsible person's problem. A shocking reversal of good luck. Humiliation or disgust at having to put up with someone else's problem when you don't feel you should have to.
To dream of performing oral sex on a woman during menstruation may represent feelings about highly unusual measures being taken to help someone during a very unpleasant or embarrassing moment of their lives. Negatively, it may reflect desperation to help someone.
Dreams of menstruation are common for pregnant women. This may reflect their feelings about the stress, frustration, and physical effects of the pregnancy being unpleasant and requiring a lot personal time off.
Example: A young man dreamed of a girl he had fallen in love with in waking life being on her period. In waking life he was enlisted in the military and frustrated that he couldn't do anything to be with the girl until he finished serving his time. The menstruation period may have reflected his feelings about his military enlistment being an unpleasant problem needing attention and that kept him away from enjoying himself having a real relationship.
Example 2: A woman dreamed that her period was late by 3 weeks with no end in sight. In waking life she was beginning to feel unusually optimistic about finding a man as someone she liked repeatedly kept showing up in her life. Her period being unusually late may have reflected her feelings of increased confidence that this particular romantic encounter wasn't going to end in disappointment like she usually expects.
*Please See Tampons