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.
1 On the first day of your period, day one, you put the ring on the red bead. 2  You move the ring from one bead to another each day â in the direction of the arrow.  Brown beads stand for safe days. You can have unprotected vaginal intercourse when the ring is on one of them.