I took the Next Choice Emergency Contraceptive on March 15th and started bleeding on March 21st for bout 5 days. I want to know when to expect my next period. I expected it on April 4th, but I don't have any signs of an expected period except for breast tenderness and tiredness. I took a pregnancy test this morning that showd negative. Was it the rght time to take the test, and when should I take the test again?