Published on: 8/19/2025
What are the differences between progestin-only and combination birth control pills?
Progestin-only pills contain just one hormone, while combination pills have two. They work differently to prevent pregnancy and have different effects on the body.
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Explanation
Birth control pills come in two main types: progestin-only and combination pills. Progestin-only pills contain just one hormone, progestin. They mainly work by thickening the mucus in the cervix, which helps stop sperm from reaching an egg. These pills are often recommended for breastfeeding women because they don't affect milk production.
Combination pills have two hormones, estrogen and progestin. They prevent pregnancy by stopping the ovaries from releasing eggs and also by thickening cervical mucus. These pills might be more effective for some people but can have more side effects due to the estrogen.
Choosing the Right Pill:
- Progestin-only pills are good for those who can't take estrogen.
- Combination pills might be better for those who want more effective pregnancy prevention and don't have issues with estrogen.
Each type of pill has its benefits and drawbacks, so it's important to talk to a healthcare provider to decide which is best for you.
(References)
- Kelsey JJ. (1996). Hormonal contraception and lactation. Journal of human lactation : official journal of International Lactation Consultant Association, 9025449.
- Powell A. (2017). Choosing the Right Oral Contraceptive Pill for Teens. Pediatric clinics of North America, 28292450.
- Rivera R, Yacobson I, & Grimes D. (1999). The mechanism of action of hormonal contraceptives and .... American journal of obstetrics and gynecology, 10561657.
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