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Women's Center at Westover Hills
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Depo-Provera Injection


The Depo–provera shot contains progesterone which prevents pregnancy by preventing ovulation and by thickening the mucus at the cervix which blocks the sperm from entering.

The shot is given in the office every 12 weeks. The first shot is given when you start your period. Only about 6 women in 100 get pregnant on the shot.

Pros of Depo

  • It lasts for 12 weeks
  • You can use this method without others knowing
  • Your periods may be less painful
  • You may not have a period at all
  • It is safe while breastfeeding

Cons of Depo

  • It causes changes in your periods
  • You may have other side effects that will last the entire 12 weeks until the shot wears off.
  • You have to go back to the Doctors office every 12 weeks for another shot.
  • Some women may gain weight with the shot.

What if I am late for my shot?

Use a backup method such as condoms to prevent pregnancy and talk to your provider to find out when to reinitiate the Depo shot.

Possible Side Effects

  • Your periods may not be at the same time each month
  • You may have spotting between your periods
  • Your periods may happen less often but last longer
  • Most women stop having periods after 12 months. This is not harmful.
  • Nausea
  • Sore breasts
  • Lower sex drive
  • Weight gain
Women who may not be a candidate for Depo
  • History of breast cancer
  • Heart disease
  • Vaginal bleeding for no reason
  • Liver problems
Warning signs to report
  • Sudden headaches or repeated and painful headaches
  • Heavy vaginal bleeding
  • Depression
  • Severe lower abdominal pain
  • Redness, itching, pain or bleeding where you received you shot

The birth control patch does NOT protect you from HIV and other sexually transmitted infections. Use condoms to protect yourself from these infections.

From Our Patients
“Dr. Cajas has been my Dr. for my past three pregnancies... I absolutely love him and his staff.
I would highly recommend him to anyone.” – Rosy Estrada