edu/new/releases/1827-27-percent-of-women-who-missed-two-pills-in-a-row-risked-pregnancy) study suggests the trick is to remember to take the pill, or use backup contraception
for seven days if you forget.
In contrast, the contraceptive couple expects to not have a child and more often than not, if an "accident" does occur, backup contraception
otherwise known as abortion is employed.
Patients must be instructed that if the ring slips out or is left out for more than 3 hours, backup contraception
must be used for a week.
Where semen testing is not available, couples are usually advised to use backup contraception
for 12 weeks.
The letter advised doctors to stop inserting new implants and to have current Norplant users employ backup contraception