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  1. 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

  2. Pregnancy - NICHD - Eunice Kennedy Shriver National Institute of …

    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 …

  3. Feb 19, 2025 · Background President Donald Trump issued Executive Order 14168 on January 20, 2025, entitled “Defending Women from Gender Ideology Extremism and Restoring …

  4. 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

  5. About Pregnancy | NICHD - NICHD - Eunice Kennedy Shriver …

    Oct 28, 2013 · 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 …

  6. 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 …

  7. Contraception - World Health Organization (WHO)

    Nov 28, 2025 · Family planning allows people to attain their desired number of children, if any, and to determine the spacing of their pregnancies. It is achieved through use of contraceptive …

  8. 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 …

  9. 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.

  10. Eunice Kennedy Shriver National Institute of Child Health and …

    Sep 12, 2016 · Barrier —physically interferes with conception by keeping the egg and sperm apart Hormonal —regulates ovulation by changing the balance of hormones related to development …