Pay sales tax with the Retail Sales Tax Return For Occasional Sales (DR 0100A) on the tangible personal property included in the purchase of the business by the 20th day of the month following the sale.
So, to avoid pregnancy she has to better avoid unprotected sexual intercourse in this period. The rest of the days i.e., starting from menstruation to the 10th day and again from 21st day up to menstruation are the safe days or the safe period to avoid pregnancy.
The safe periods â where there is no egg to fertilise â are thus from the first day of the last menstruation and 6 days on and from the 13th day after the last menstruation and to the next menstruation (see figure). A woman with 32 days between two menstruations will have 8 safe periods.