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  1. Conception can occur only in the 6 days before ovulation through the day of ovulation.

  2. 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 …

  3. 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

  4. 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.

  5. 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 …

  6. Feb 19, 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 …

  7. 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 …

  8. 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

  9. Emergency contraception - Office on Women's Health

    Jan 6, 2023 · Emergency contraception is a method of birth control you can use if you had sex without using birth control or if your birth control method did not work correctly. You must use emergency …

  10. What is preconception care, and what is its aim? Preconception care is the provision of biomedi-cal, behavioural and social health interventions to women and couples before conception occurs. It aims …