When you're pregnant some symptoms you may experience are back pain, frequent urination, implantation bleeding or spotting which can be either brown or pink in color.
Other Pregnancy Symptoms are nausea, increased appetite, Vomiting, Fatigue, Tender or Swollen breasts and a missed period.
All those pregnancy symptoms are very common but sometimes don't happen until after you're 3 weeks into your pregnancy so that's why you cannot get too accurate of a reading on a pregnancy test until you're 2 to 3 weeks into your pregnancy.