â€¢ Describe different methods of birth control, including how they prevent pregnancy

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â€¢ Describe different methods of birth control, including howthey prevent pregnancy

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Fertility control is the use of any method or device to prevent pregnancy It is also called birth control family planning or contraception Fertility control techniques may be temporary or permanent Several methods are available for fertility control RHYTHM METHOD SAFE PERIOD Rhythm method of fertility control is based on the time of ovulation After ovulation ie on the 14th day of menstrual cycle the ovum is fertilized during its passage through fallopian tubes Its viability is only for 2 days after ovulation and should be fertilized within this period Sperms survive only for about 24 to 48 hours after ejaculation in the female genital tract If sexual intercourse occurs during this period ie between few days before and few days after ovulation there is chance of pregnancy This period is called the dangerous period Pregnancy can be avoided if there is no sexual intercourse during this period The prevention of pregnancy by avoiding sexual mating during this period is called rhythm method The periods when pregnancy does not occur are 4 to 5 days after menstrual bleeding and 5 to 6 days before the onset of next cycle These periods are together called safe period MECHANICAL BARRIERS PREVENTION OF ENTRY OF SPERM INTO UTERUS Mechanical barriers are used to prevent the entry of sperm into uterine cavity These barriers are called condoms The male condom is a leak proof sheath made of latex It covers the penis and does not allow entrance of semen into the female genital tract during coitus In See Answer

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