Birth control
Extreemely effective, 99-100%
  tubal ligation  
vasectomy
abstinance (practiced)
Highly Effective 94-99%
 
IUD plus spermicide
IUD alone
Condom plus spermacide
oral contraceptive
effective 86-82%
condom
 
Diaphragm plus spermacide
vaginal sponge with spermacide
spermicide (foam)
moderalty
74-75%
 
  spermicide (creams, jellies, suppositories)  
rhythm method (dialy temperature readings)
fairly inneffective 74%-70%  
  withdrawal  
cheap condom
unreliable 10% to 40%  
  douche  
no mehtod
All values are for 100 couples over 1 year.

 

Methods of pregnancy prevention
stop sperm from meeting egg   Stop egg from implanting and comming to term

barrier methods

prevention of ovulation

 

IUD,

French abortion pill