Am i pregnant if i had what seemed like an implantation bleeding or is it a period, it was three days long with no cramps and only the first two days were medium flow and the last was spotting but my usual periods are heavy flow with cramps of 5 days?

A pregnancy test will be positive as soon as the first day of your missed period. For accurate testing, the first morning urine should be used. You can repeat the test with a different brand if you want to double check. The initial signs of pregnancy are breast tenderness and enlargement, nausea and dizziness. A blood test measuring hCG may also be used.