
Pregnancy - NICHD - Eunice Kennedy Shriver National Institute of Child ...
Dec 30, 2020 · The events that lead to pregnancy begin with conception, in which a sperm penetrates an egg. The fertilized egg (called a zygote) then travels through the woman's fallopian tube to the …
Trying to conceive - Office on Women's Health
Sep 26, 2025 · How do you figure out when you're fertile and when you're not? Wondering if you or your partner is infertile? Read on to boost your chances of conception
Women's Health Infographic: Conception (Text Alternative)
Dec 30, 2017 · 6 Things to Know About Conception Graphic: A diagram indicating that peak fertility occurs between days 12 and 14 of an average 28-day menstrual cycle. Ovulation occurs at about …
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Nov 20, 2025 · The sex of a human, female or male, is determined genetically at conception (fertilization), and is observable before birth. Having the biological function to produce eggs or sperm …
Stages of pregnancy - Office on Women's Health
Sep 26, 2025 · Pregnancy lasts about 40 weeks, counting from the first day of your last normal period. The weeks are grouped into three trimesters.
Contraception and Birth Control
Sep 12, 2016 · Contraception is the prevention of pregnancy. Contraception, or birth control, also allows couples to plan the timing of pregnancy. Some methods can also protect against infections. …
Preconception health
Sep 26, 2025 · Preconception health is a woman's health before she becomes pregnant. It means knowing how health conditions and risk factors could affect a woman or her unborn
Pregnancy tests - Office on Women's Health
Oct 24, 2025 · If you think you may be pregnant, taking a pregnancy test as soon as the first day of your missed period can help you get the care and support you need.
Sex-Based Definitions - Office on Women's Health
Nov 14, 2025 · The sex of a human, female or male, is determined genetically at conception (fertilization), and is observable before birth. Having the biological function to produce eggs or sperm …