Which term is defined as the probability of pregnancy during a single menstrual cycle in a woman with adequate exposure to sperm and no contraception?

Which term is defined as the probability of pregnancy during a single menstrual cycle in a woman with adequate exposure to sperm and no contraception?

• A. Fecundability
• B. Fecundity
• C. Fertility
• D. Fertility rate

Answer: (A)

The main idea here is the per-cycle chance of conceiving when a woman has adequate exposure to sperm and is not using contraception. That specific probability is called fecundability. It captures the likelihood of pregnancy in a single menstrual cycle, given a healthy, fertile pathway and timely intercourse. Fecundity, in contrast, refers to the broader potential to reproduce over a lifetime or the biological capacity to conceive, not the chance in any single cycle. Fertility can be used more broadly to describe the ability to conceive and carry a pregnancy or the actual outcome of successful reproduction, sometimes encompassing medical or social factors beyond a single cycle. Fertility rate is a demographic measure, describing how many births occur in a population over a period, often expressed per woman or per 1,000 people per year, rather than the per-cycle probability for an individual. So the per-cycle probability with adequate exposure and no contraception is fecundability.

The main idea here is the per-cycle chance of conceiving when a woman has adequate exposure to sperm and is not using contraception. That specific probability is called fecundability. It captures the likelihood of pregnancy in a single menstrual cycle, given a healthy, fertile pathway and timely intercourse.

Fecundity, in contrast, refers to the broader potential to reproduce over a lifetime or the biological capacity to conceive, not the chance in any single cycle. Fertility can be used more broadly to describe the ability to conceive and carry a pregnancy or the actual outcome of successful reproduction, sometimes encompassing medical or social factors beyond a single cycle. Fertility rate is a demographic measure, describing how many births occur in a population over a period, often expressed per woman or per 1,000 people per year, rather than the per-cycle probability for an individual.

So the per-cycle probability with adequate exposure and no contraception is fecundability.