Aim What is the difference between chemical and

Aim: What is the difference between chemical and barrier contraception? Do Now: Name 5 different kinds of contraception

Chemical Contraception: What is it? n A type of substance that does one of the following to the body: Suppresses ovulation n Thickens the cervical mucous n Thins the lining of the uterine wall n

Types of Chemical Contraceptives n Birth Control Pills: Oral pill taken daily n Contains estrogen and/or progestin n If taken correctly, can be 99% effective n

Birth Control Pills n Benefits n n Lighter menstrual cycles with less cramping Can be used to treat acne Can be used to treat menstrual problems Over 40 yrs of research has proven long-term safety n Risks n n n Does not protect against STI’s May cause nausea, breast tenderness, weight gain, and irregular spotting Not recommended for women over age 35 who smoke

Types of Chemical Contraceptives n Injections Depo-Provera n Given every 12 weeks n Has failure rate of less than 1% n Must be given within the first 5 days of menstrual cycle n

Injection n Benefits n n Possibility of no menstrual cycle after a year Risk of heart problems are reduced because it does not contain estrogen n Risks n n Does not protect against STI’s Possibility of irregular bleeding

Types of Chemical Contraceptives n Spermicides Nonoxynol-9 n Comes in creams, foams, films, and suppositories n Blocks cervix and kills sperm n

Spermicides n Benefits n Risks n Easy to purchase n Does not protect against STI’s n Does not require a prescription n Can be messy n May irritate penis or vagina

Barrier Contraception: What is it? n A device that is used to physically block the sperm and egg from uniting

Types of Barrier Contraceptives n Condom Male and Female n Placed on the sex organs to prevent transmission of fluids n

Condoms n Benefits n n Protects against pregnancy and STI transmission Cost Efficient n n n Male about $1, female about $4 Easy to get Female condom can be used for people with latex allergies n Risks n n Does not protect against all STI’s Potential to tear or rip during use

Types of Barrier Contraceptives n Diaphram, Cervial Cap, Sponge n Devices placed at the top of the vagina covering the cervix