Pregnancy brings enormous hormonal and physical change over about 40 weeks, followed by the often under-discussed postpartum recovery. This guide orients you through the trimesters and into the “fourth trimester,” with links to deeper articles.
Early signs of pregnancy
A missed period is the classic sign, but many people notice tender breasts, fatigue, nausea, frequent urination, or heightened smell first. A home pregnancy test is most reliable from the day of your missed period. Implantation bleeding — light spotting — is sometimes mistaken for an early period; see implantation bleeding vs period.
Across the trimesters
- First trimester (weeks 1–12): rapid hormonal change, nausea, fatigue; folate matters most here.
- Second trimester (weeks 13–27): symptoms often ease; the bump and movement appear.
- Third trimester (weeks 28–40): growth, Braxton Hicks, and preparing for birth.
Skincare and safety
Pregnancy changes skin, and some common actives (like retinoids and high-strength salicylic acid) are usually avoided. Use the free ingredient checker to screen products, and read safe skincare during pregnancy. Always confirm medications and supplements with your provider.
Postpartum recovery
Recovery takes far longer than six weeks. Bleeding (lochia), hormonal shifts, hair changes, and mood changes are all common. Your period may return anywhere from a few weeks to many months later, especially while breastfeeding. Seek help promptly for signs of postpartum depression.
For readers in United States
In the US, the privacy of reproductive-health data is a key consideration — choose apps and providers that are transparent about how your data is stored and shared, and confirm options with your healthcare provider or insurer.