According to the Office on Womens Health , 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 veinsa week pregnancy application contain :Pregnancy at week 1 to 13,weeks in a pregnancy 14 to 26,weeks in a pregnancy 27 to 34,weeks in a pregnancy 35 to 40,how many weeks Isymptoms of pregnancy in a weekweeks in a pregnancyhow many weeks is a pregnancy?how many weeks is a full term pregnancy?what is a full term pregnancy?how many weeks is a first trimester?how many weeks does a pregnancy last?how many weeks in a trimester? what symptoms of pregnancy in a week?how long weeks in a trimester?