This may be sufficient to initiate a pregnancy. This is an unreliable method. Because sperm can make their way beyond the cervix within 90 seconds after ejaculation, this method is ineffective and unreliable. Women who are breastfeeding infants and do not desire another pregnancy at that time need to use a reliable form of contraception. Semen is collected inside the condom, which must be carefully maintained in place and then removed after intercourse.
Condoms are readily available at low cost in most drug and grocery stores.
Some family planning clinics may offer free condoms. About 12 pregnancies occur over 1 year out of 100 couples using this method. Effectiveness is increased when spermicide is also used. However, this method used by itself is not very effective. About 21 pregnancies occur over 1 year out of 100 women using this method.