The very early signs of pregnancy around 1 week after conception can be subtle and may include:
- Mild cramping and light implantation bleeding, which occurs when the fertilized egg attaches to the uterine lining about 5-6 days after conception. The bleeding is usually light, pink, or brownish and different from a menstrual period.
- Breast tenderness or swelling, caused by hormonal changes.
- Fatigue due to increased progesterone levels.
- Missed or lighter menstrual period, which is often the primary sign.
- Some may experience mood swings or mild nausea, though nausea typically starts later.
Symptoms vary greatly between individuals, and some may have no noticeable signs at this early stage. A pregnancy test is usually more reliable after a missed period (around 2 weeks post-conception). The hormonal changes driving these symptoms begin early but are subtle in the first week post-conception.
