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Pregnancy & Contraception

Pregnancy & Contraception. http://www.youtube.com/watch?v=xQwChXZqk6E&list=PLYkDg7ymNvkiqmsBBehqh89DTEFaRurK-&index=4. How Pregnancy Happens. Fertilization: One sperm penetrates one egg (ovum) Usually occurs in the outer third of the fallopian tube. How Pregnancy Happens.

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Pregnancy & Contraception

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  1. Pregnancy & Contraception http://www.youtube.com/watch?v=xQwChXZqk6E&list=PLYkDg7ymNvkiqmsBBehqh89DTEFaRurK-&index=4

  2. How Pregnancy Happens Fertilization: • One sperm penetrates one egg (ovum) • Usually occurs in the outer third of the fallopian tube

  3. How Pregnancy Happens Fertilizations Occurs: • Before Ovulation: -Sperm can live for 2-5 days in the fallopian tubes. If the egg is released during the time that sperm is present, fertilization can occur • At Ovulation: -The egg is ready to be fertilized two hours after it is released • After Ovulation: -An egg can live for 1-2 days after it is released

  4. How Pregnancy Happens After fertilization has taken place it takes the fertilized egg 3-5 days to move down the fallopian tubes. It then implants in the upper portion of the uterus

  5. How Pregnancy Happens Implantation: • Pre-embryo implants of attaches to the lining of the uterus

  6. How Pregnancy Happens

  7. Types of Birth Control • Chemical • Mechanical • Abstinence-based • Permanent

  8. Birth Control Pills • taken daily • INEFFECTIVE if a dose is missed • prescription from doctor • Hormones: thicken cervical mucus and prevent ovulation • progestin • estrogen

  9. Birth Control Shot • "Depo-Provera" • Prescription • 1 shot every 3 months • Hormone: Progestin • Effectiveness: ~99%

  10. Birth Control Vaginal Ring • 'NuvaRing' • Similar to birth control pills • ring inserted for 3 weeks, left out for 1 • new ring then inserted • Effectiveness: 99%

  11. Birth Control Patch • Prescription • similar to birth control pills • 1 new patch a week for 3 week • 1 week off for menstruation • Effectiveness: 99%

  12. Condoms are only 85% effective with PERFECT use • Different varieties of condoms have different effectiveness: • Latex (Polyurethane) condoms offer the best STI protection • Lamb Skin • Polyisoprene

  13. Exit Ticket Question: What is the only birth control method that ensures 100% against pregnancy? Journal: Comment on the media/society's perceptions of birth control and/or sexual abstinence

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