Conception is all about timing. Our clinical-grade calculator helps you identify your peak fertile window to maximize your chances of pregnancy.
Enter your last period date and cycle length to visualize your peak fertility and upcoming biological milestones.
The human egg is viable for only **12 to 24 hours** after release. However, sperm can survive inside the female reproductive tract for up to **5 days**. This creates a "fertile window" where intercourse several days *before* ovulation is just as critical as on the day of ovulation itself.
Your body provides physical cues as estrogen rises before ovulation. Look for:
If your cycles are irregular (skipping months) or shorter than 21 days / longer than 35 days, you may not be ovulating consistently (Anovulation). In these cases, simple cycle tracking isn't enough, and ovulation induction or diagnostic ultrasounds may be necessary.