Offspring 
To dream of your offspring stands for exuberance and happy moments.
Sister
To dream of your sister represents the bond that you both share. Either you are very close or you are often in conflict with each other. Perhaps your sister reflects the position you hold within your family and your feelings regarding acceptance. It may also imply that your sister and some other person you associate with share the same attributes. This dream may also be symbolizing a nun and therefore imply that you may be having emotional conflicts.
If you do not have a sister and dream that you have one, then it implies that you possess certain qualities that you have not discovered as of yet. Consider what the sister is saying and doing.
Brother
To dream of your brother represents the bond that you share with him. Perhaps you know someone else who also has the same attributes or features that he possesses.
If you do not have a brother and dream that you have one, then this may indicate that you have to recognize certain attributes that you possess. The brother in your dream may represent a very important relationship that you share with someone else.
A brother may also signify devout and inspirational emotions that you harbor. It is also possible that you have trouble surrendering control and power to someone else.
To dream that you are mad or angry at your brother implies that you hold unresolved feelings of rage that you are hesitant to communicate
Triplets
To dream of triplets denotes that you will unexpectedly succeed in an endeavor.
For a man to dream that his partner is having triplets signifies that a problem or dispute will finally be resolved amicably.
If a woman dreams of giving birth to triplets, it foretells that she will expect a bright future in her career, while her personal life will suffer.
To hear or see crying triplets signifies closure to disagreements in your waking life.
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