💊 Combined Oral Contraceptive Hormone Suppression Simulator

Starting the Pack — Active Hormone Pills Begin

Placeholder: daily estrogen-progestin dosing starts suppressing the axis.

• 21: Active pill days (Placeholder short caption)
• Falling: Starting FSH level (Placeholder short caption)
• Falling: Starting LH level (Placeholder short caption)
• Quieting: Follicle state (Placeholder short caption)

Why suppression starts immediately

Placeholder sentence describing early pituitary suppression onset.

Placeholder highlight: early adherence matters most in week one.

FSH and LH Decline Through the Active Weeks

Placeholder: gonadotropin levels drop as hormone exposure accumulates.

• 8–14: Days into pack (Placeholder short caption)
• Suppressed: FSH trend (Placeholder short caption)
• Blocked: LH surge risk (Placeholder short caption)
• Minimal: Follicle growth (Placeholder short caption)

Building a stable suppression plateau

Placeholder sentence on cumulative suppression across the second week.

Placeholder highlight: missed pills here blunt the plateau.

Ovulation Blockade Holds Through Week Three

Placeholder: peak suppression prevents any dominant follicle from maturing.

• 15–21: Days into pack (Placeholder short caption)
• Blocked: Ovulation status (Placeholder short caption)
• Peak: Suppression level (Placeholder short caption)
• Dormant: Follicle size (Placeholder short caption)

Maintaining peak suppression

Placeholder sentence describing sustained blockade at pack end.

Placeholder highlight: consistency keeps blockade dependable.

Days 22–28 — Hormone-Free Placebo Interval

Placeholder: stopping hormones lets suppression begin fading gradually.

• 7: Placebo days (Placeholder short caption)
• Rising: FSH/LH trend (Placeholder short caption)
• Low but rising: Ovulation risk (Placeholder short caption)
• Shedding: Endometrium (Placeholder short caption)

What the placebo week changes

Placeholder sentence describing why the hormone-free week is included.

Placeholder highlight: extended placebo weeks raise escape risk.

Withdrawal Bleed and the New Pack Begins

Placeholder: bleeding occurs and day 1 of a new pack restores suppression.

• Days 24–26: Bleed onset (Placeholder short caption)
• Day 1: New pack day (Placeholder short caption)
• Restarting: Suppression reset (Placeholder short caption)
• Maintained: Protection continuity (Placeholder short caption)

Restarting the suppression cycle

Placeholder sentence on resuming active pills without a gap.

Placeholder highlight: late restart is the riskiest adherence lapse.