How is a diaphragm used?
The diaphragm may be inserted no more than two hours before sexual intercourse. After coating the bowl of the diaphragm with spermicidal cream or jelly, grasp the diaphragm between the thumb and forefinger, pinch the edges together, and insert into the vagina. Push the front rim of the diaphragm up behind the pubic bone. Check to be sure your cervix is covered by the smooth dome of the diaphragm. Remember to leave the diaphragm in place for at least 8 hours after intercourse and to remove it as soon as possible thereafter. If you have intercourse again before removing the diaphragm, insert an applicator of spermicide into the vagina before each act of intercourse. It is not advisable to use your diaphragm as your birth control method during your menstrual period. Either abstain or use condoms if you are sexually active at this time.