It seems that you performed a pregnancy test after the expected period date so the test result on the 2nd of April which was negative is relevant and you are not pregnant. Your period delay could be due to the existence of a functional ovarian cyst. Ovarian cysts produce hormones that stop ovulation and delay the menstrual period. This delay can’t last forever because a cyst persists only for 2-3 cycles. During some ovarian cysts, vaginal bleeding occurs which, in fact, is not a real period.
You may take another pregnancy test. If the test is negative an ovarian cyst is probably the reason for the delayed "false" period. You can also go for a check up at your gynecologist's office to be sure.