The injectible works by suppressing ovulation, making your ovaries unable to release a mature egg for fertilization. It also thickens the mucus of your cervix, which makes it difficult for sperm to pass through. By preventing the meeting of the mature egg of a woman and the sperm of a man, it makes the process of getting pregnant very difficult.
Who Can’t Take Injectable Contraceptives?
The following should avoid this means of contraceptive:
- Breastfeeding women who have delivered their baby less than six weeks prior to the injection
- People who are at risk for cardiovascular disease (old age, smokers, diabetics, hypertensives)
- Those who suffer from Deep Vein Thrombosis
- People currently with or have a history of cardiovascular disease or stroke
- People who have had a history of breast cancer with no evidence of the disease within the last five years
- Those with unexplained vaginal bleeding
- People with Systemic Lupus Erythematosus (SLE)
- People with Complicated Diabetes
- Those with Liver Cirrhosis and/ or Liver Tumors
People who have breast cancer MUST NOT take injectable contraceptives.
What Do I Do When I Go in for My Shot?
When availing of an injectable contraceptive, you will be given one shot. You’ll have to come back for another every 12-13 weeks or 3 months, making a total of 4 shots a year. You don’t have to do anything prior to receiving your first shot, and if you have your first shot at 7 days after the start of your period, the effects of the shot will immediately protect you from pregnancy. However, if your shot was administered at any other time during your cycle, you’ll have to use other forms of contraceptives for at least a week before the drug takes effect.
After taking your first shot, be sure to take note of when your next check up and shot administration will be (3 months from your first shot) by marking it on a calendar or having your partner remind you.
What Happens if I Miss One of My Shots?
If you miss your follow up shot and have had sex within 2 weeks after your scheduled shot, you may have to take a pregnancy test as the effect of the progesterone shot may have already worn off, exposing you to becoming pregnant.