There are many reasons you might miss a period. Simple things such as stress or exercising too much can cause a missed period and many girls are irregular during the first few years of menstruating. But if you've missed a few periods, be sure to see your healthcare provider.
Courts usually find probable cause when there is a reasonable basis for believing that a crime may have been committed (for an arrest) or when evidence of the crime is present in the place to be searched (for a search).
In over simplified. terms, probable cause âexist[s] where the known facts and circumstances are sufficient to. warrant a man of reasonable prudence in the belief that contraband or evidence of a crime. will be found,â Ornelas v. United States, 517 U.S. 690, 696 (1996); Illinois v. Gates, 462. U.S. 213, 238 (1983).