The Most Popular Contraceptive Options

3. Diaphragm. This is a special cap that needs to be inserted into the vagina. It is an ideal method of protecting against pregnancy, but it cannot guarantee protection against sexually transmitted infections. 4. Oral contraceptives. They should always be selected and taken under the careful guidance of a doctor. These are pills that need to be taken daily for three weeks with a one-week break, or continuously. Oral contraceptives protect against pregnancy in 95-97% of cases.