Combined Pill (Estrogen + Progestin)

How it works

Together, estrogen and progestin suppress ovulation. Progestin thickens cervical mucus, making it harder for sperm to pass. The endometrium becomes thinner, reducing the chance of implantation. The effect depends on regular use. After stopping, fertility usually returns in the next cycle. The pill does not protect against STIs; a condom should be added.

Pack types

• 21 active days + 7-day break: A withdrawal bleed occurs during the break.
• 28 days: 21 active + 7 placebo. Taken continuously without a break.
• Continuous use: Periods may stop. May be preferred with endometriosis or heavy periods.

The estrogen dose is usually 20–35 mcg of ethinyl estradiol. Low-dose forms may reduce side effects. The type of progestin (levonorgestrel, desogestrel, drospirenone, etc.) affects the acne and bleeding profile. At SoftCare, the pill is chosen based on your menstrual pattern, acne and thrombosis risk.

Who it is suitable for

• Those who want to regulate their periods
• Those with acne or excess hair growth
• Heavy or painful periods
• A short-term protection plan
• Those who want to ease endometriosis symptoms

Contraindications (CDC US MEC 2024 category 4):

• Over 35 and smoking more than 15 cigarettes a day
• Migraine with aura
• Uncontrolled high blood pressure (≥160/100)
• Past venous thromboembolism (not on anticoagulants)
• History of breast cancer
• Severe liver disease
• Sickle cell disease
• Pregnancy or suspected pregnancy

For those over 35 who smoke fewer than 15 cigarettes a day, it is category 3; it is assessed carefully if no other method is available. In breastfeeding women, it is not recommended in the first 6 months; during this period, the progestin-only pill is preferred.

When to start

• If started on the first day of your period, it is effective immediately.
• If started within the first 5 days of your period, no backup protection is needed.
• At other times, condoms are used for the first 7 days.
• In women who are not breastfeeding, it can be started 3–6 weeks after giving birth; in breastfeeding women, it is started after the 6th month.
• It can be started the same day after a miscarriage or abortion.

Before starting, your blood pressure is measured and you are asked about smoking and any history of thrombosis. A Pap smear and HPV test are planned if needed. Breakthrough bleeding in the first 3 months is normal; if it continues, the pill can be changed.

Managing missed pills

If one active pill is missed (less than 24 hours late):

• Take it as soon as you remember.
• Take the next pill at the usual time.
• No backup protection is needed.

If two or more active pills are missed (48 hours or more):

• Take the most recently missed pill.
• Continue with the remaining pills.
• Use condoms for the next 7 days.
• If the pills were missed in the first week and you had sex in the last 5 days, emergency contraception is considered.
• If fewer than 7 active pills are left in the pack, start a new pack without a break.

Missing placebo pills does not affect protection. At SoftCare, written instructions for missed pills are provided.

Side effects

Common in the first months:

• Nausea
• Breast tenderness
• Breakthrough bleeding or spotting
• Headache
• Bloating
• Mood changes

These effects usually decrease within 2–3 months. Weight gain is not directly caused by the pill. Acne usually improves. If side effects continue, the pill can be changed or switching to LARC can be discussed.

Rare but serious risks:

• Venous thromboembolism: about 3–4 times higher than baseline risk. The absolute risk is still low (5–15 per 10,000 per year).
• Arterial thrombosis (stroke, heart attack): higher in smokers over 35.
• Liver tumor (very rare)
• Gallbladder disease

If you have chest pain, shortness of breath, leg swelling, a sudden headache or vision loss, stop the pill and seek urgent care.

Benefits

• Regulates periods and reduces bleeding
• Eases period pain
• May improve acne
• Lowers the risk of ovarian and endometrial cancer
• Reduces functional ovarian cysts
• Prevents iron deficiency anemia

These benefits are seen with regular use. The reduction in cancer risk is more marked with long-term use.

How it differs from the gold IUD and other methods

At SoftCare, the gold IUD is our first choice. The combined pill may be preferred in these situations:

• If period regulation or acne control is wanted
• If there is a short-term protection plan
• A medically eligible patient who does not want an IUD

The gold IUD is hormone-free and carries no risk of forgetting. The pill requires remembering every day. The hormonal IUD reduces bleeding, with less systemic effect. The implant changes the bleeding pattern in an unpredictable way. The pill does not protect against STIs; a condom should be added. The decision is based on risk of forgetting, bleeding profile and thrombosis risk.

Drug interactions

Some medicines can reduce the pill’s effectiveness:

• Rifampicin and some antiepileptics
• St John’s wort
• Some HIV medicines

Most antibiotics do not affect how well the pill works. People taking rifampicin need backup protection. At SoftCare, we ask about your list of medicines.

Follow-up

• Check for breakthrough bleeding and side effects in the first 3 months
• Annual blood pressure measurement
• Pap smear and HPV screening continue as routine
• Stop the pill if you are over 35 and smoke, or develop migraine with aura
• Urgent evaluation if there are signs of thrombosis

At SoftCare, patients starting the pill receive written missed-pill instructions and urgent care criteria.

Our approach at SoftCare

At SoftCare Clinic, assessment for the combined pill starts with your gynecological history, blood pressure and questions about smoking. The gold IUD is our first recommendation; if you want to regulate your periods or have a short-term plan, the pill is discussed. A suitable dose and type of progestin are chosen. Missed-pill instructions are given in writing. A check-up is planned within the first 3 months. If there is a thrombosis risk or side effects, switching to LARC is discussed. If there is an STI risk, condoms and testing are recommended.

Appointments: +90 212 241 30 10 · softcareclinic.com

References

• 1. Centers for Disease Control and Prevention (CDC). U.S. Medical Eligibility Criteria for Contraceptive Use, 2024.
• 2. Centers for Disease Control and Prevention (CDC). U.S. Selected Practice Recommendations for Contraceptive Use, 2024.
• 3. American College of Obstetricians and Gynecologists (ACOG). Combined Hormonal Contraception.
• 4. Trussell J. Contraceptive failure in the United States. Contraception. 2011;83(5):397–404.
• 5. UpToDate. Combined estrogen-progestin oral contraceptives: Patient selection, counseling, and use.
• 6. Winner B, et al. Effectiveness of long-acting reversible contraception. N Engl J Med. 2012;366:1998–2007.
• 7. T.C. Sağlık Bakanlığı. Gebeliği Önleyici Yöntemler.
• Note: Missed-pill rules and contraindications are updated by the physician in line with current CDC guidelines. At SoftCare, the gold IUD is our first choice; the combined pill is discussed for selected indications. This reference list is for information purposes.

A citation does not mean that SoftCare wrote that text.

Medically reviewed by Op. Dr. Şükrü Sanus, Obstetrician & Gynecologist · Last medical review: 2 October 2026