When is your fertile window?
Based on your cycle length
Medical Disclaimer: This tool provides general educational estimates. Always consult your prescribing physician or healthcare provider before making medication changes or interpreting results from population-based models.
Frequently Asked Questions
The 5 days before ovulation and ovulation day itself. Sperm survive up to 5 days.
Temperature rise, cervical mucus changes, mild pelvic pain. OPKs detect LH surge 24-36 hours before.
Peaks in mid-20s, declines after 30, sharply after 35. At 40, about 5% chance per cycle.
Under 35: after 12 months trying. 35-39: after 6 months. 40+: see specialist right away.
Methodology
Ovulation estimated as cycle length minus 14 days. Fertile window: 5 days before ovulation through ovulation day.
Fertile window: 6 days ending on ovulation day. Ovulation ~14 days before next period. Best chance: 1-2 days before ovulation.
What else do you want to know?
Ask Pulse anything.