See general population estimates for your odds of conceiving per cycle and over time, based on published fertility research by age.
Fertility declines gradually through the late 20s and 30s, then more noticeably after about 35, and again after 40 — driven mainly by declining egg quantity and quality over time. The decline is a gradual curve, not a sudden cliff at any single birthday.
Also called fecundability, it's the estimated probability of conceiving in any single menstrual cycle for a couple trying, assuming regular, well-timed intercourse. Because it compounds over multiple cycles, even a modest per-cycle chance adds up to a much higher chance over 6–12 months.
No — these figures reflect general population averages by female age alone. Male fertility factors, conditions like PCOS or endometriosis, weight, smoking, and many other variables can meaningfully shift the odds up or down for a specific couple.
Common guidance is to check in after 12 months of trying if you're under 35, or after 6 months if you're 35 or older — sooner if you have a known condition affecting fertility, irregular cycles, or a history of pregnancy loss. A specialist can run tests this calculator can't.
No — they're a starting reference point drawn from population-level studies, not a personal prediction. Two people the same age can have very different individual odds depending on their specific health and history.