Calculate your earliest post-contraception or post-loss ovulation window, understand hormonal clearance intervals, and navigate your cycle reset safely.
First ovulation after stopping oral contraceptives or following an early pregnancy loss can occur as early as 14 to 21 days post-stop/bleeding, before your first true period arrives. For long-acting progestin injections (Depo-Provera), full clearance typically requires 3 to 9 months.
Проверено: Команда клинических исследований и вычислительной методологии Free Ovulation Tracker
Первичные научные источники: Wilcox et al. (NEJM, 1995 и 1999) • Практические бюллетени ACOG • Стандарты ВОЗ по репродуктивному здоровью
Архитектура конфиденциальности: 100% локальное исполнение в браузере (Нулевое хранение на серверах)
Withdrawal bleed occurs 2–4 days after stopping. True ovulatory cycle typically resumes within 3–6 weeks once the hypothalamic-pituitary-ovarian (HPO) axis clears synthetic ethinylestradiol.
When you observe your first natural period or confirmed ovulation shift, transition to our primary free ovulation tracker and calendar to project your upcoming 6 cycles.
Exogenous synthetic estrogens and progestins maintain high feedback that silences hypothalamic pulsatile GnRH and prevents the pituitary LH surge. Once cleared, the HPO axis awakens, allowing antral follicles to mature.
Following a miscarriage or chemical pregnancy, residual beta-hCG can cross-react with LH receptor assays, causing false-positive OPKs until systemic hCG drops below 5 mIU/mL.
Audited under our Clinical Methodology & Citations.
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