(Published September 2022)
|
Method column (1) |
% of women experiencing an unintended pregnancy within the first year of use |
% of women continuing use at 1 yeara |
|
|
Typical useb Column (2) |
Perfect usec Column (3) |
Column (4) |
|
|
No methodd |
85 |
85 |
|
|
Spermicidese |
28 |
18 |
42 |
|
Fertility awareness-based methods |
24 |
47 |
|
|
Standard Days methodf |
5 |
||
|
TwoDay methodf |
4 |
||
|
Ovulation methodf |
3 |
||
|
Symptothermal methodf |
0.4 |
||
|
Withdrawal |
22 |
4 |
46 |
|
Sponge |
36 |
||
|
Parous women |
24 |
20 |
|
|
Nulliparous women |
12 |
9 |
|
|
Condomg |
|||
|
Female (fc) |
21 |
5 |
41 |
|
Male |
18 |
2 |
43 |
|
Diaphragmh |
12 |
6 |
57 |
|
Combined pill and progestin-only pill |
9 |
0.3 |
67 |
|
Evra patch |
9 |
0.3 |
67 |
|
NuvaRing |
9 |
0.3 |
67 |
|
Depo-Provera |
6 |
0.2 |
56 |
|
IUCs |
|||
|
ParaGard (copper T) |
0.8 |
0.6 |
78 |
|
Mirena (LNG) |
0.2 |
0.2 |
80 |
|
Implanon |
0.05 |
0.05 |
84 |
|
Female sterilization |
0.5 |
0.5 |
100 |
|
Male sterilization |
0.15 |
0.10 |
100 |
|
LAM is a highly effective, temporary method of contraception.i |
|||
a Among couples attempting to avoid pregnancy, the percentage who continue to use a method for 1 year.
b Among typical couples who initiate use of a method (not necessarily for the first time), the percentage who experience an accidental pregnancy during the first year if they do not stop use for any other reason. Estimates of the probability of pregnancy during the first year of typical use for spermicides and the diaphragm are taken from the 1995 NSFG corrected for underreporting of abortion; estimates for fertility awareness-based methods, withdrawal, the male condom, the pill and Depo-Provera are taken from the 1995 and 2002 NSFG corrected for underreporting of abortion. See the text for the derivation of estimates for the other methods.
c Among couples who initiate use of a method (not necessarily for the first time) and who use it perfectly (both consistently and correctly), the percentage who experience an accidental pregnancy during the first year if they do not stop use for any other reason. See the text for the derivation of the estimate for each method.
d The percentages becoming pregnant in columns (2) and (3) are based on data from populations where contraception is not used and from women who cease using contraception in order to become pregnant. Among such populations, about 89% become pregnant within 1 year. This estimate was lowered slightly (to 85%) to represent the percentage who would become pregnant within 1 year among women now relying on reversible methods of contraception if they abandoned contraception altogether.
e Foams, creams, gels, vaginal suppositories and vaginal film.
f The Ovulation and TwoDay methods are based on evaluation of cervical mucus. The Standard Days method avoids intercourse on cycle days 8 through 19. The Symptothermal method is a double-check method based on evaluation of cervical mucus to determine the first fertile day and evaluation of cervical mucus and temperature to determine the last fertile day.
g Without spermicides.
h With spermicidal cream or jelly.
i However, to maintain effective protection against pregnancy, another method of contraception must be used as soon as menstruation resumes, the frequency or duration of breast-feeds is reduced, bottle feeds are introduced or the baby reaches 6 months of age.
Lean More About Woman Health
HerSolution Pills Review- Best Female Libido Booster and Sex Pill for Women
Want to take a look at the food to avoid before sex?
walking for weight loss as a beginner?
Performer 8 Review-Reclaim Your Sexual Energy And Stamina
Nugenix Total T Review-Does It Really Work? Is This Testosterone Booster Effective?
About Audrey Kelly, PharmD