Last lmp was on 6-11 feb sexual intercourse on 13 feb condom broke but their was no ejaculation took ipill on 14 early morning within 12 hr of intercourse had brownish bleeding from 18 to 23 feb bleeding was not heavy as period. But their was bleeding 1-2 pad require for 24 hr but bleeding was brownish. Took pregnancy test on 6 march and 9 march with first morning sample both was negative. Is their chnace of pregnancy when I will have my next period