Or it could mean that Mother nature is just being forgetful mother nature.
But watch out, when it does come back, you will have the worst cramps! That's usually how it works :( So IF you need it, gear up on your pain killers. But always ask an adult before use of them.
Abstinence means to avoid or not want to do something. It is preferred that high school children under the age of 18 restrain from sexual activity. (Hope this helps if it did pls mark brainliest!)