Initial week 1 Pregnancy symptoms  are different for every woman and every pregnancy. The most common first sign of pregnancy is a missed menstrual period.

Other early pregnancy symptoms include:

• nausea with or without vomiting
• breast changes including tenderness, swelling, or tingling feeling, or noticeable blue veins
• Frequent Urination
  
• Headache
• Body temperature up down
  
• bloating in the belly or gas
• mild pelvic cramping or discomfort without bleeding
• Fatigue
  
• irritability or mood swings
• Food desires or aversions
• a heightened sense of smell

Not all of these symptoms are unique to pregnancy. It is also important to note that early pregnancy does not always cause noticeable symptoms.