SomeVar is a variable of type Variant. Since a variant can behave like any data type, we can make it look like an array, which is exactly what the ReDim statement does.  After it is executed, SomeVar becomes an array! Of course, we could create a 2 dimensional array with.  ReDim SomeVar(9, 9)
If the egg is not fertilized, hormones stimulate your uterus to shed the lining at the end of your cycle. This shedding is your period. Experiencing a heavy or even a normal period means that you cannot be pregnant, since your uterus has shed its lining instead of maintaining it to sustain a fertilized egg.
Benign, or noncancerous, tumors in the uterus can cause heavy bleeding or long periods. Benign growths in the uterine lining (endometrium) can cause a heavy or prolonged period. These growths are known as polyps, when the growth is made up of endometrial tissue, or fibroids, when the growth is made up of muscle tissue.